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Mycroft and Sherlock's Relationship
Benedict Cumberbatch and Mark Gatiss on the brothers Holmes in Season 4.
Clip: S4 | 49s
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Martin Freeman Would You Rather
Actor Martin Freeman plays "Would You Rather?"
Clip: S4 | 2m 8s
John and Sherlock’s Friendship
The cast and crew discuss John and Sherlock's friendship.
Clip: S4 | 47s
An Unlikely Duo
Actor Martin Freeman on the unusual friendship of John and Sherlock.
Clip: S4 | 1m 30s
The Season 4 actress on what it was like to join Sherlock.
Clip: S4 | 55s
A New Villain
Be the first to learn about Sherlock Season 4's villain, played by Toby Jones.
Clip: S4 | 1m 31s
Why John Blames Sherlock
Actor Martin Freeman on John and Sherlock's relationship.
Clip: S4 | 1m 29s
Toby Jones on his role as Sherlock's latest nemesis.
Clip: S4 | 56s
Watson Home Set Build Time-Lapse
See the hard work that went into building the set for John and Mary's home.
Creators Answer Revealing Questions
Steven Moffat and Mark Gatiss get to know one another at San Diego Comic Con 2016.
Clip: S4 | 3m 38s
Amanda Abbington vs. YouTube
Sherlock Actress Amanda Abbington
Clip: S4 | 2m 26s
Benedict on Sherlock’s Evolution
Benedict Cumberbatch on Sherlock becoming a more human genius over the years.
Clip: S4 | 1m 1s
Cast Teases Season 4
Sherlock cast members Rupert Graves, Amanda Abbington, and Louise Brealey tease Season 4.
Clip: S4 | 48s
See a new Sherlock, Season 4 trailer!
Preview: S4 | 40s
Sherlock as Babysitter
Would Sherlock make a good babysitter to the Watson's newborn? The cast weighs in.
Timelapse of 221B Set Build
See the 221B set being assembled!
The Cast on Returning
Here's the cast discussing returning to film Sherlock, Season 4
Clip: S4 | 57s
The Cast on Parenthood
The #SherlockPBS cast discusses the arrival of a new baby.
Mary's Secret Past
Amanda Abbington on Mary Watson's secrets.
Clip: S4 | 1m 25s
Best Thing About Working on the Series
We asked the Sherlock cast: What's their favorite thing about working on the series?
First Week of Filming
Go back to April and the first week of filming Sherlock, Season 4.
Clip: S4 | 1m 3s
Cast's First Series Memory
What was the cast's first memory of working on Sherlock? Find out!
Clip: S4 | 58s
Mark Gatiss Tells 2 Truths & A Lie
The Sherlock co-creator and actor reveals a secret or two about himself.
Clip: S4 | 50s