| Cast list |
| John Cunningham | as | Dr. Wade Collins (5 episodes, 1971-1977) |
| Damion Scheller | as | Joshua Moreno (4 episodes, 1951-1986) |
| Val Dufour | as | John Wyatt (3 episodes, 1972-1979) |
| Mary Stuart | as | Joanne 'Jo' Gardner Barron Tate Reynolds Vincente Tourneur / ... (3 episodes, 1951-1977) |
| Deborah Cresswell | as | Linda Phillips (3 episodes, 1977) |
| Morgan Fairchild | as | Jennifer Pace #2 (2 episodes, 1973-1977) |
| Jane Krakowski | as | Rebecca 'T.R.' Kendall (2 episodes, 1984-1986) |
| Ron Husmann | as | Dr. Dan Walton (2 episodes, 1971-1972) |
