The BBC has confirmed that Toby Jones (Dad’s Army, The Girl) will star in the new season of Sherlock.

The 49-year-old British actor began filming the second episode of Season 4 today.

As we reported earlier this month, Episode 2 will be directed by Nick Hurran, who previously helmed Season 3’s finale, ‘His Last Vow’, and Doctor Who‘s 50th anniversary special, ‘The Day of the Doctor’.

Toby Jones commented: “I’m excited and intrigued by the character I shall be playing in Sherlock…”

Sherlock co-creator, writer and executive producer Steven Moffat teased: “Delighted to have Toby Jones on board, bringing to life one of Doyle’s finest villains.”

Mark Gatiss added: “We’re thrilled to welcome one of our finest actors to the Sherlock family. I know Toby will embrace the part with true relish!”

Sue Vertue, Executive Producer for Hartswood Films, said: “Great to have Nick Hurran back after his fabulous work in Series 3 and I’ve been wanting to work with Toby for ages so this is a real treat.”

Toby Jones played the Dream Lord in Steven Moffat’s first season of Doctor Who in 2010, appearing in the episode ‘Amy’s Choice’.

> Buy ‘The Abominable Bride’ special on DVD on Amazon.

> Buy the complete Season 1-3 boxset on Amazon.

The fourth season of Sherlock began filming in Cardiff last month.

> Here’s everything we know about Season 4 so far.

Who do you think Toby Jones will be playing? Let us know below…