Actor on stage and in film who led the Broadway cast of Sunset Boulevard. He is perhaps best known for his role on the Sci-Fi smash sensation Doctor Who and he also plays Malcolm Merlyn on Arrow.
He competed on his high school's speech team.
He had a small part in the 2005 re-make of the musical, The Producers.
He married Scott Gill in 2013.
He appeared alongside Kevin Kline in the Golden-Globe nominated comedy, De-Lovely.