This must've been a role he signed up before he won a Oscar… JK!
Eddie Redmayne is going from world's smartest man to world's smartest train in a Thomas The Tank Engine movie! (OK, Thomas isn't doing calculus, but hey it's a train that can talk!)
Eddie will be voicing a train called Ryan in the latest Thomas and Friends DVD called Sodor's Legend Of The Lost Treasure.
And Eddie, just like us, has been watching Thomas the Tank Engine since he was a youngster!
Here's what the actor said about his upcoming movie: