In this episode, Gary Grossman plays "1987" Two episodes later he plays "Neil Gorman". Four episodes later he plays "Man In Dryer". A couple episodes prior, he played Mr. Feldman, Dan's roommate in the hospital.
3rd appearance of Stanley Brock. He plays Lieutenant Gerard here. He has also appeared in S1E5 as Vincent Frago and S2E19 as Mr. Douglas. He will appear one last time, but not until season 8.
Lt. Gerard was also the name of the relentless cop who pursued Dr. Richard Kimble for four seasons of The Fugitive in the mid-1960s. The one-armed man jokes are in reference to Dr. Kimble's claim of innocence in his wife's murder. He gave that description of a person he saw leaving their home before he entered and found her.
Lieutenant Gerard's actions of relentless pursuit an uncompromising treatment of the man he is pursuing is reminiscent of Inspector Javart from Les Miserables, which Gerard's name is a close homonym of.