Diego Klattenhoff is a Canadian actor. He was born on November 30, 1979 in Nova Scotia, Canada.
Diego Klattenhoff is best known for playing Mike Faber in the Showtime series Homeland, Derek in Whistler, and Ivan in Men in Trees. Since 2013, he stars as FBI Agent Donald Ressler in The Blacklist.
On Supernatural, Diego Klattenhoff portrayed Duane Tanner in season 2 episode "Croatoan", while Duane's brother Jake was portrayed by Nolan Gerard Funk. The two actors also had portrayed two brothers in the season 4 episode Krypto of the CW series Smallville.
- Diego Klattenhoff at Wikipedia