When Nate takes his dad to the hospital for a routine colonoscopy, the exam becomes a life-endangering ordeal for Bob and Margo.
| Name | Type | Role |
|---|---|---|
| Robert Roy Thomas | Writer | |
| Roy Jenkins | Guest Star | |
| Chad Brokaw | Guest Star | |
| Cathy Shim | Guest Star | |
| Steve Berg | Guest Star | |
| Shawn Crowder | Guest Star | |
| Jordan Black | Guest Star | |
| Kirby Heyborne | Guest Star | |
| Kit Pongetti | Guest Star | |
| Joel Skore | Guest Star | |
| Mary Garripoli | Guest Star | |
| Chip Joslin | Guest Star | |
| Lara Everly | Guest Star | |
| Erin Cahill | Director | |
| Dave Sheridan | Director | |
| Josh Dean | Director | |
| Robert Roy Thomas | Director | |
| Allan Havey | Director | |
| Loretta Fox | Director | |
| Julia Lee | Director |