David Paul Boreanaz ( born May 16 , 1969 ) is an American actor . He is best known for his role on the television series Buffy the Vampire Slayer and Angel . David Paul Boreanaz ( born May 16 , 1969 ) is an American actor , television producer , and director , known for his role as Angel on the supernatural drama series Buffy the Vampire Slayer and Angel , and as Special Agent Seeley Booth on the television comedy-crime drama Bones .