Daniel Bernard "D. B." Sweeney (born November 14, 1961) is an American actor who voiced Aladar in the 2000 Disney animated film, Dinosaur, and Sitka in the 2003 Disney animated film, Brother Bear. He also voiced Slam Hammer in "Phineas and Ferb". He also played Colonel Driscolli in Miracle at St. Anna, Michael Holzcek in Roommates, Coach Rice in Going to the Mat, Graham Rympalski in Once and Again, Michael Whitman in Life as We Know It, Detective Kyle Seeger in Castle, and Joseph Tanner in Betrayal.