 His main screen appearances include "L.A. Law", "Melrose Place", "It's Like, You Know...", "Providence", "The West Wing" and "The L Word".He appeared as Mark Robinson, a co-worker (and according to Ross, lover) of Rachel Green (Jennifer Aniston) in the sitcom "Friends".His role in the 1997 TV pilot for the sitcom "Dads" is seen by test audiences at the Television Preview, a marketing research operation in which participants are told they are seeing a pilot for a new program.