Off (https://www.newsday.com/entertainment/tv/charlie-s-angels-turns-40-11-facts-about-the-show-1.12344516) the top (https://www.youtube.com/watch?v=qOofbXSRcsk) of my head (https://www.metv.com/quiz/can-you-identify-these-celebrities-on-charlies-angels):

A pre-Magnum, P.I. and clean shaven Tom Selleck as Jaclyn Smith's love interest in a Season 1 episode.

Kim Basinger as a woman that the Angels encounter and assist while undercover in prison in the "Angels in Chains" episode.

Tommy Lee Jones in the pilot episode.

A pre-007 Timothy Dalton in a Season 4 episode as Farrah Fawcett's ex-boyfriend, where his character is even described as "James Bond-ian".

Robert Englund (AKA Freddy Kruger) in the fourth season episode "Harrigan's Angel".

Jamie Lee Curtis appeared roughly around the same time that the first Halloween film was being released.

Jonathan Frakes (AKA Commander William Riker on Star Trek: TNG) in the third season episode "Angel on My Mind", where Cheryl Ladd's character suffers from amnesia.


I'm almost inclined to want to add Patrick Duffy, who appeared in the fourth season in an episode alongside a post-Brady Bunch Robert Reed. But Dallas had already been on the air for well over two years by that point.