Extras

    Video thumbnail: Sherlock Mycroft and Sherlock's Relationship

    Sherlock

    Mycroft and Sherlock's Relationship

    Benedict Cumberbatch and Mark Gatiss on the brothers Holmes in Season 4.

    Mycroft and Sherlock's Relationship

    Video thumbnail: Sherlock John and Sherlock’s Friendship

    Sherlock

    John and Sherlock’s Friendship

    The cast and crew discuss John and Sherlock's friendship.

    John and Sherlock’s Friendship

    Video thumbnail: Sherlock Martin Freeman Would You Rather

    Sherlock

    Martin Freeman Would You Rather

    Actor Martin Freeman plays "Would You Rather?"

    Martin Freeman Would You Rather

    Video thumbnail: Sherlock An Unlikely Duo

    Sherlock

    An Unlikely Duo

    Actor Martin Freeman on the unusual friendship of John and Sherlock.

    An Unlikely Duo

    Video thumbnail: Sherlock Sian Brooke

    Sherlock

    Sian Brooke

    The Season 4 actress on what it was like to join Sherlock.

    Sian Brooke

    Video thumbnail: Sherlock Toby Jones

    Sherlock

    Toby Jones

    Toby Jones on his role as Sherlock's latest nemesis.

    Toby Jones

    Video thumbnail: Sherlock Watson Home Set Build Time-Lapse

    Sherlock

    Watson Home Set Build Time-Lapse

    See the hard work that went into building the set for John and Mary's home.

    Watson Home Set Build Time-Lapse

    Video thumbnail: Sherlock A New Villain

    Sherlock

    A New Villain

    Be the first to learn about Sherlock Season 4's villain, played by Toby Jones.

    A New Villain

    Video thumbnail: Sherlock Why John Blames Sherlock

    Sherlock

    Why John Blames Sherlock

    Actor Martin Freeman on John and Sherlock's relationship.

    Why John Blames Sherlock

    Video thumbnail: Sherlock Creators Answer Revealing Questions

    Sherlock

    Creators Answer Revealing Questions

    Steven Moffat and Mark Gatiss get to know one another at San Diego Comic Con 2016.

    Creators Answer Revealing Questions

    Video thumbnail: Sherlock Amanda Abbington vs. YouTube

    Sherlock

    Amanda Abbington vs. YouTube

    Sherlock Actress Amanda Abbington

    Amanda Abbington vs. YouTube

    Video thumbnail: Sherlock Benedict on Sherlock’s Evolution

    Sherlock

    Benedict on Sherlock’s Evolution

    Benedict Cumberbatch on Sherlock becoming a more human genius over the years.

    Benedict on Sherlock’s Evolution

    Video thumbnail: Sherlock Cast Teases Season 4

    Sherlock

    Cast Teases Season 4

    Sherlock cast members Rupert Graves, Amanda Abbington, and Louise Brealey tease Season 4.

    Cast Teases Season 4

    Video thumbnail: Sherlock Mary's Secret Past

    Sherlock

    Mary's Secret Past

    Amanda Abbington on Mary Watson's secrets.

    Mary's Secret Past

    Video thumbnail: Sherlock Preview

    Sherlock

    Preview

    See a new Sherlock, Season 4 trailer!

    Preview

    Video thumbnail: Sherlock Sherlock as Babysitter

    Sherlock

    Sherlock as Babysitter

    Would Sherlock make a good babysitter to the Watson's newborn? The cast weighs in.

    Sherlock as Babysitter

    Video thumbnail: Sherlock Timelapse of 221B Set Build

    Sherlock

    Timelapse of 221B Set Build

    See the 221B set being assembled!

    Timelapse of 221B Set Build

    Video thumbnail: Sherlock The Cast on Returning

    Sherlock

    The Cast on Returning

    Here's the cast discussing returning to film Sherlock, Season 4

    The Cast on Returning

    Video thumbnail: Sherlock The Cast on Parenthood

    Sherlock

    The Cast on Parenthood

    The #SherlockPBS cast discusses the arrival of a new baby.

    The Cast on Parenthood

    Video thumbnail: Sherlock Best Thing About Working on the Series

    Sherlock

    Best Thing About Working on the Series

    We asked the Sherlock cast: What's their favorite thing about working on the series?

    Best Thing About Working on the Series

    Video thumbnail: Sherlock First Week of Filming

    Sherlock

    First Week of Filming

    Go back to April and the first week of filming Sherlock, Season 4.

    First Week of Filming

    Video thumbnail: Sherlock Cast's First Series Memory

    Sherlock

    Cast's First Series Memory

    What was the cast's first memory of working on Sherlock? Find out!

    Cast's First Series Memory

    Video thumbnail: Sherlock Mark Gatiss Tells 2 Truths & A Lie

    Sherlock

    Mark Gatiss Tells 2 Truths & A Lie

    The Sherlock co-creator and actor reveals a secret or two about himself.

    Mark Gatiss Tells 2 Truths & A Lie