Glenn was one of Dr. Wendy Lee's lovers in the Season 7 episode The Fix. He was portrayed by actor Drew Cohn.
Glenn is briefly seen with Tony at the beginning of the episode when Tony tapes a picture of Dr. Lee to a missile target. Dr. Lee had recently broken up with Tony and had started openly dating Ceaser. However, Ceaser had found out that Dr. Lee was also sleeping with Glenn as well. As a result, Ceaser poisoned her with cantharidin.