| Jack Stewart | |
 | |
| Occupation | Doctor |
| Job title | Exact job unknown |
| Portrayer | Scott Baio |
| Information | |
| First Seen | Unknown |
| Last Seen | Unknown |
| Appeared | Season 1 & 2 |
Jack Stewart is a doctor at Community General Hospital who appeared in the first two seasons of the show. He was Steve's best friend, whom he often helped in his cases. He left to open his own practice in Colorado.