| John Loengard (19 episodes 1996-1997) | 艾瑞克·克罗斯
 | |
| Capt. Frank Bach (19 episodes 1996-1997) | J·T·沃尔什
 | |
| Old John Loengard (19 episodes 1996-1997) | Gregory Harrison | |
| Kimberly Sayers (18 episodes 1996-1997) | 梅甘·沃德
 | |
| Lt. Commander Phil Albano (17 episodes 1996-1997) | 康纳·奥弗莱尔 | |
| Jim Steele (11 episodes 1996-1997) | Tim Kelleher | |
| Dr. Halligan (11 episodes 1996-1997) | Charley Lang | |
| Juliet Stewart (8 episodes 1997) | 洁蕊·瑞恩
 | |
| Allen Dulles (6 episodes 1996-1997) | Mike Kennedy | |
| Robert Kennedy (5 episodes 1996-1997) | James F. Kelly | |
| Pyne? (4 episodes 1996-1997) | Grant Mathis | |
| Jack Ruby (3 episodes 1996-1997) | Jack Lindine | |
| General Nathan F. Twining (3 episodes 1996-1997) | Arell Blanton | |
| Hubert Humphrey (3 episodes 1996-1997) | Don Moss | |
| Dr. Hertzog? (2 episodes 1996-1997) | Robin Gammell | |
| Jesse Marcel (2 episodes 1996) | Richard Gilliland | |
| Activist? (2 episodes 1996-1997) | Jeff Juday | |
| J. Edgar Hoover (2 episodes 1996-1997) | Wayne Tippit | |
| Robert Goodwin (2 episodes 1996-1997) | 泰瑞·博兹曼
 | |
| General Brown (2 episodes 1997) | Bradford English | |
