Buffy The Vampire Slayer Cast: Where Are They Now?
8. Seth Green
The Role: Seth Green played Oz, the boyfriend of Willow and guitarist in Sunnydale's finest rock group Dingoes Ate My Baby, across seasons 2-4. He left the show to try and deal with the little matter of being a werewolf, and returned to find that Willow was now dating Tara, which prompted him to leave once more.
Where Is He Now? Green was already an established name outside of Buffy, having appeared as Scott Evil in all three Austin Powers films, and he's continued to do a lot of work since the series ended.
Most notably he created the animated, adult-orientated sketch-comedy series Robot Chicken, which has so far ran for seven seasons and multiple specials, with Green providing a number of voices on the show as well, and has been voicing Chris Griffin on Family Guy since the very beginning.
Most recently he's guest starred in sitcoms like How I Met Your Mother and Community, hosted WWE Raw, and voiced Howard the Duck in Guardians of the Galaxy. Next up he'll be guest starring on web-series Con-Man, which comes from Firefly's Alan Tudyk, about a cult sci-fi actor touring the convention circuit (so Tudyk's life post-Firefly, basically).