boreanaz' first television acting job was a single episode on the hit american sitcom, "married... with children". he played kelly bundy's biker boyfriend. he was cast in the television series "buffy the vampire slayer", after being seen by a producer when boreanaz was walking his dog. in the series, he played angel, a vampire with a soul. the series became very successful and boreanaz starred in a spin-off series, "angel". this new series gave the character a chance to evolve. it was mainly about on angel's battle for redemption. he appeared on "buffy" from 1997 to 1999, at which point he began starring in "angel", which ran until 2004. totalling all of his appearances on "buffy" &amp; "angel", including guest appearances, boreanaz has been in more episodes of the 2 series than any other actor.