Yulin's first feature role was in Brian De Palma's 1983 film, Scarface as Mel Bernstein, a dirty narcotics cop. He also appeared in Ghostbusters II, Rush Hour 2, Training Day, Star Trek: Deep Space Nine, and Nikita.
The first episode of 24 that he appeared in aired on the same night his character Quentin Travers on Buffy the Vampire Slayer was killed off. Yulin never received onscreen credit for his role on 24. Upon being told that his name would have to share the screen with other actors also credited as special guests, Yulin opted not to be credited at all.