As if the Marvel Universe wasn’t already star-studded enough, it’s been announced that the great Martin Freeman has joined the cast of the Phase Three sequel Captain America: Civil War.

Marvel reports the news of Freeman’s casting although, tantalizingly, they don’t mention who he’ll be playing. Read the official press release below:

From his roles as Bilbo Baggins and Doctor Watson to Tim in ‘The Office,’ Martin’s range from the dramatic to the comedic has consistently impressed us,” said “Captain America: Civil War” Producer Kevin Feige. “We couldn’t be more honored or excited to have such a talented actor join the Marvel Cinematic Universe.”

Celebrated for his roles in “Sherlock,” “Fargo,” the “Hobbit” trilogy, and much more, Freeman has earned one Primetime Emmy® Award and one BAFTA Award, both for his portrayal of Doctor John Watson in “Sherlock.” Martin has also been nominated for a Golden Globe® for his role of Lester Nygaard in “Fargo”, and nominated for a further two Emmy Awards and two BAFTA Awards. Most recently Martin has been seen hosting SNL and has filmed Tina Fey’s untitled wartime black comedy.

All we can do is speculate about Freeman’s role at this point. Will he be friend or foe to Cap and the rest of the Avengers? Either way I can’t see him signing on for a role that doesn’t have some significance in the film’s plot and/or bigger MCU picture.

In case you don’t know, here’s the official plot for the sequel:

The events of the Age of Ultron left an imprint on the world, the collective governments of the world pass an act designed to regulate all superhuman activity. This polarizes opinion amongst the Avengers, causing two factions to side with Iron Man or Captain America, which causes an epic battle between former allies.

What do you think of Freeman joining the Marvel world? Any guesses on who he’ll be playing?

Captain America: Civil War is set for release in the UK on April 29th, 2016.