Ben Browder

Ben Browder (born 11 December 1962 ) is an American actor who portrayed Isaac in the Doctor Who episode A Town Called Mercy.

Browder first came to the attention of science fiction fans when he was cast as astronaut in , first broadcast in 1999. He appeared in every episode of the series' four year run, and reprised the role in the subsequent mini-series, .

In 2005, he took the lead in the long running series . He appeared in the show's final two seasons as, and returned for the two spin-off television movies, ', and '.

Browder also had a recurring role in Party of Five, and has guest starred in Murder, She Wrote, Chuck, and Arrow.