Nathan Baesel (born April 7, 1974 in La Palma, California) is an American actor.
Baesel graduated from the Juilliard School of Drama. He has appeared in various national television spots and guest starred in The District and CBS's Cold Case. He had a recurring role on ABC's science fiction drama Shaun Cassidy's Invasion, playing the one-armed deputy Lewis Sirk. Baesel is a founding member of NY-based Theater Mitu and he performs regularly for South Coast Repertory. He also starred in the horror movie Behind the Mask: The Rise of Leslie Vernon. He starred in the post-apocalyptic film 20 Years After.