Grandpa Appleton comes for a visit and is quite a surprise: He's 76 years old and is acting like a wild teenager, and has a much younger girlfriend. Larry thinks he should act more his age but Balki thinks that it's okay acting as young as he feels.
| Name | Type | Role | |
|---|---|---|---|
| Barry O'Brien | Writer | ||
| Cheryl Alu | Writer | ||
| George Poulos | Guest Star | ||
| Helen Lambros | Guest Star | ||
| Marianne Muellerleile | Guest Star | ||
| John Anderson | Guest Star | ||
| Brenda Thomson | Guest Star | ||
| Joel Zwick | Director |