Martin summons Leonardo da Vinci for help in fixing his spaceship.
| Name | Type | Role | |
|---|---|---|---|
| Gene Thompson | Writer | ||
| Bill Kelsay | Writer | ||
| Joe Higgins | Guest Star | ||
| Billy Greene | Guest Star | ||
| David Bond | Guest Star | ||
| Michael Constantine | Guest Star | ||
| David Alexander | Director | ||
| Gene Thompson | Director |