Diego Klattenhoff

Diego Klattenhoff (born November 30, 1979) is a Canadian actor known for his portrayals of Mike Faber in the Showtime series Homeland and as FBI Special Agent Donald Ressler in The Blacklist. He has also appeared as Derek in Whistler, Ivan in Men in Trees, as well as having a minor role in Mean Girls as Shane Oman. Klattenhoff was born in French River, Nova Scotia, Canada, and moved to Toronto at the age of 19 to pursue an acting career. He has studied with some of Canada's most respected acting coaches and has had notable appearances in TV shows like Smallville and Stargate SG-1, as well as films like Lucky Number Slevin.