 Since 2006, he has been in recurring roles like Young Jacob in CBC Television's "At the Hotel", Derek in CTV's "Whistler", Ivan Palacinke in ABC's "Men in Trees" and Mike Callahan in NBC's "Mercy".Klattenhoff appeared in "Homeland" as Mike Faber, a Marine Captain whose best friend returns to the U.S. after disappearing in Iraq eight years earlier.He and the cast were nominated once for a Screen Actors Guild Award for Best Cast, and twice for a PAAFTJ Television Awards for Best Cast in a Drama Series.