Among the series guest stars were Spelling's ex-wife Carolyn Jones, Leslie Nielsen, William Windom, Ed Asner (three episodes in three different roles), Vincent Price, Sammy Davis Jr. (three episodes in three different roles), Andy Griffith, Joe Don Baker, David Cassidy, Richard Pryor, Lee Grant, Richard Dreyfuss (two episodes in two different roles), Jo Van Fleet, Tom Bosley, Marion Ross, Danny Thomas (as well as being co-executive producer of the show), Tyne Daly (two episodes in two different roles), Anthony Geary, Sam Elliott, Martin Sheen, Desi Arnaz Jr., René Auberjonois, Stefanie Powers, Robert Reed, Cesar Romero, Meg Foster (two episodes in two different roles), Jack Cassidy, Tony Dow, Vic Tayback, Fritz Weaver, Harrison Ford (uncredited role), Clint Howard, Louis Gossett, Jr., Sugar Ray Robinson, Bobby Sherman (two episodes in two different roles), Billy Dee Williams, Victor Buono, Jim Backus, Fernando Lamas, Cleavon Little, Daniel J. Travanti (three episodes in three different roles), Barbara McNair and Rodolfo Hoyos, Jr. (three episodes in three different roles).