| Name | Character | Episodes |
|---|---|---|
| Beverly D'Angelo | Miss Emmy | 8 |
| Richard Jordan | Joseph Armagh | 8 |
| Henry Fonda | Sen. Enfield Bassett | 8 |
| David Huffman | Sean Armagh | 8 |
| Ann Dusenberry | Anne-Marie | 8 |
| Perry King | Rory Armagh | 8 |
| Joanna Pettet | Katherine Hennessey | 8 |
| Charles Durning | Ed Healey | 8 |
| Patty Duke | Bernadette Hennessey Armagh | 8 |
| Pernell Roberts | Colonel Elbert Braithwaite | 8 |
| Vic Morrow | Tom Hennessey | 8 |
| John Carradine | Father Hale | 8 |
| Robert Vaughn | Charles Desmond | 8 |
| Ray Bolger | R.J. Squibbs | 8 |
| Blair Brown | Elizabeth Healey Hennessey | 8 |
| Sally Kirkland | Aggie | 8 |
| Barbara Parkins | Martinique | 8 |
| Neville Brand | O'Herlihy | 8 |
| Ann Sothern | Mrs. Finch | 8 |
| Jane Seymour | Marjorie Chisholm Armagh | 8 |
| Terry Kiser | Courtney Wickersham | 8 |
| Celeste Holm | Sister Angela | 8 |
| John Houseman | Judge Newell Chisholm | 8 |
| Philip Bourneuf | Father Scanlon | 8 |
| Harvey Jason | Harry Zieff | 8 |
| Peter Donat | Clair Montrose | 8 |
| Sian Barbara Allen | Cara Leslie | 8 |
| Burl Ives | Old Syrup | 8 |
| Katherine Crawford | Mary Armagh | 8 |
| Jenny Sullivan | Honora Houlihan | 8 |
| Joe Kapp | Bill Strickland | 8 |
| Cynthia Sikes | Claudia | 8 |