Comedic actor who became host of The Late Late Show on CBS. He won a BAFTA Television Award for Best Comedy Performance for his work on BBC's Gavin & Stacey and a Tony Award for Best Actor in a Play for his performance in the award-winning comedy play One Man, Two Guvnors.
He made his acting debut in a one-line role in the 1996 musical Martin Guerre. He also played Gareth Jones in the 1999 series Boyz Unlimited.
He has co-hosted the BRIT awards three times. He appeared in the 2014 film Into the Woods.
In 2012, he married Julia Carey, whom he met through former housemate and actor Dominic Cooper. He and Julia have a son named Max and a daughter named Carey. In December 2017, they welcomed their third child together.
He has a recurring role in season five and six of Doctor Who alongside Matt Smith.