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Gwilym Sims-Williams

Scriptwriter, Producer

Portfolio

42 work samples. Each credit shows where it came from.

I Entered A Jiu-Jitsu Tournament To Prove It Doesn't Work

I Entered A Jiu-Jitsu Tournament To Prove It Doesn't Work

Jesse Enkamp · 12.7M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

I Entered A Jiu-Jitsu Tournament To Prove It Doesn't Work
Jesse Enkamp12.7M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My Evidence-Based Skincare Routine

My Evidence-Based Skincare Routine

Ali Abdaal · 8.9M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileRAEES KHANThumbnail Designer profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My Evidence-Based Skincare Routine
Ali Abdaal8.9M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

How Bad Is McDonald's REALLY?

How Bad Is McDonald's REALLY?

Bryan Johnson · 5.4M historical views

People behind the work

Paweł KaliskiVideo Editor profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

How Bad Is McDonald's REALLY?
Bryan Johnson5.4M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

How I Fixed My Terrible Posture - 5 Habits

How I Fixed My Terrible Posture - 5 Habits

Bryan Johnson · 5M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileRory JVideo Editor profilematthew..creativityYouTube Strategist profileGwilym Sims-WilliamsYouTube Producer profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter, Creative Director, YouTube Producer

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

How I Fixed My Terrible Posture - 5 Habits
Bryan Johnson5M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

How to Build Your Ultimate Productivity System

How to Build Your Ultimate Productivity System

Ali Abdaal · 2.8M historical views

People behind the work

Masud ParvezVideo Editor profileJamie WhiffenYouTube Strategist profileSmitVideo Editor profileGwilym Sims-WilliamsScriptwriter profileEj Alfred SarcitaVideo Editor profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

How to Build Your Ultimate Productivity System
Ali Abdaal2.8M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

Is Sauna ACTUALLY Good For You? (90-Day Experiment)

Is Sauna ACTUALLY Good For You? (90-Day Experiment)

Bryan Johnson · 2.8M historical views

People behind the work

Paweł KaliskiVideo Editor profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

Is Sauna ACTUALLY Good For You? (90-Day Experiment)
Bryan Johnson2.8M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

Why You're Always Tired

Why You're Always Tired

Bryan Johnson · 2.6M historical views

People behind the work

Rory JVideo Editor profileAdrian LmThumbnail Designer profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

Why You're Always Tired
Bryan Johnson2.6M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

I Tried To Make My Face Younger

I Tried To Make My Face Younger

Bryan Johnson · 2.6M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

I Tried To Make My Face Younger
Bryan Johnson2.6M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

How I Ranked 1st at Cambridge University - 20 Study Tips

How I Ranked 1st at Cambridge University - 20 Study Tips

Ali Abdaal · 2.3M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

How I Ranked 1st at Cambridge University - 20 Study Tips
Ali Abdaal2.3M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

Which iPad Should You Buy? (Basic, Mini, Air, Pro or Pro 12.9)

Which iPad Should You Buy? (Basic, Mini, Air, Pro or Pro 12.9)

Ali Abdaal · 1.9M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

Which iPad Should You Buy? (Basic, Mini, Air, Pro or Pro 12.9)
Ali Abdaal1.9M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My NEW Morning Routine (Live To 120+)

My NEW Morning Routine (Live To 120+)

Bryan Johnson · 1.9M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My NEW Morning Routine (Live To 120+)
Bryan Johnson1.9M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My $2.4m London Apartment Tour

My $2.4m London Apartment Tour

Ali Abdaal · 1.9M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGordon GreenhornVideo Editor profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My $2.4m London Apartment Tour
Ali Abdaal1.9M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

The Cost of Breathing in India

The Cost of Breathing in India

Bryan Johnson · 1.8M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Creative Director, YouTube Producer

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

The Cost of Breathing in India
Bryan Johnson1.8M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

The Best Headphones To Buy in 2026 🎧

The Best Headphones To Buy in 2026 🎧

Ali Abdaal · 1.8M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

The Best Headphones To Buy in 2026 🎧
Ali Abdaal1.8M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My Evidence-Based Sleep Routine

My Evidence-Based Sleep Routine

Ali Abdaal · 1.7M historical views

People behind the work

NayanVideo Editor profileTanvirVideo Editor profileSohanVideo Editor profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My Evidence-Based Sleep Routine
Ali Abdaal1.7M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

You’re using Apple Notes wrong

You’re using Apple Notes wrong

Oliur / UltraLinx · 1.7M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

You’re using Apple Notes wrong
Oliur / UltraLinx1.7M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My Complete Anti-Aging Workout

My Complete Anti-Aging Workout

Bryan Johnson · 1.7M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGwilym Sims-WilliamsYouTube Producer profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My Complete Anti-Aging Workout
Bryan Johnson1.7M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My Complete Productivity System

My Complete Productivity System

Ali Abdaal · 1.5M historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My Complete Productivity System
Ali Abdaal1.5M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

My 2025 Longevity Protocol | FULL DAY

My 2025 Longevity Protocol | FULL DAY

Bryan Johnson · 1.3M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter, YouTube Producer, Creative Director

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

My 2025 Longevity Protocol | FULL DAY
Bryan Johnson1.3M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

How To Make My Anti-Aging Meals (Live to 120+)

How To Make My Anti-Aging Meals (Live to 120+)

Bryan Johnson · 1.3M historical views

People behind the work

Paweł KaliskiVideo Editor profileGwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

How To Make My Anti-Aging Meals (Live to 120+)
Bryan Johnson1.3M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

How To Live Longer Than 99% Of Humanity.

How To Live Longer Than 99% Of Humanity.

Bryan Johnson · 1.2M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

How To Live Longer Than 99% Of Humanity.
Bryan Johnson1.2M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

Change These Phone Settings NOW

Change These Phone Settings NOW

Bryan Johnson · 1M historical views

People behind the work

Gwilym Sims-WilliamsScriptwriter profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

Change These Phone Settings NOW
Bryan Johnson1M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

Inside my $5.8m Anti-Aging Home

Inside my $5.8m Anti-Aging Home

Bryan Johnson · 1M historical views

People behind the work

The Thumbnail GirlThumbnail Designer profileGwilym Sims-WilliamsYouTube Producer profileGwilym Sims-WilliamsScriptwriter profileHaider AliThumbnail Designer profileShawn BriggsVideo Editor profile

Roles recorded on this video: Creative Director, YouTube Producer

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

Inside my $5.8m Anti-Aging Home
Bryan Johnson1M historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

Reviewing Kindles - Standard, Paperwhite, Signature, Oasis

Reviewing Kindles - Standard, Paperwhite, Signature, Oasis

Ali Abdaal · 971.6K historical views

People behind the work

Jamie WhiffenYouTube Strategist profileGordon GreenhornVideo Editor profileGwilym Sims-WilliamsScriptwriter profileCristian BaltocVideo Editor profile

Roles recorded on this video: Scriptwriter

Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

View count is from the source record, not a live YouTube figure.

Reviewing Kindles - Standard, Paperwhite, Signature, Oasis
Ali Abdaal971.6K historical views
Historical credit: what this means

A retained source record links this person and role to the video. It has not been independently re-verified.

About these numbers

Videos reported in the source portfolio
42The work samples shown above.
Views reported for the portfolio
76.8MThe source’s total for this person’s listed videos, from an unknown date. It counts public views of those videos, not views this person generated, and is not a live figure.
Channels associated
6Channels linked to this profile in the source record. An association is not a confirmed working relationship.
R

Reviewer

Historical review

Retained source review

R

Reviewer

Historical review

Retained source review

Skills & specialties

Content specialties

EducationEntertainmentScience & TechnologySports
Gwilym Sims-Williams — Scriptwriter | PixelJobs