Ian David | flickr
Oh man, how did I not know about this?! Jerry Orbach as a returning character on six episodes of Murder, She Wrote!!!!! Playing almost exactly the same character as Lenny Briscoe on Law and Order. At the end of the episode, Orbach asks Angela Lansbury to join him at his private detective agency. She should have said yes; they could have had a spin-off, and it would be my favorite show ever. Probably even top Ellery Queen!
Oh yeah, Alex Rocco is in one of the episodes, too!
Ok, so I have to edit this because the episode "Murder Takes the Bus," which is on the same disc as the previously described Jerry Orbach episode, is full of crazy guest stars. I love how both Murder, She Wrote and Law and Order attract all the great character actors, plus some big names as in Julia Roberts in L&O. Anyways, this episode had Michael Constantine (who was also on Law and Orders amongst many other things), Larry Linville (M*A*S*H!!!!!!!), David Wayne (Inspector Queen from ELLERY QUEEN!!!), and Rue McClanahan from Golden Girls. yowza, what an episode.