A new customer at the music store turns out to be Mindy's old rival, Susan, who promptly sets her sights on Mork, as revenge for Mindy stealing her boyfriend back in high school.
| Name | Type | Role | |
|---|---|---|---|
| Neil Lebowitz | Writer | ||
| Bruce M. Fischer | Guest Star | The Big Man | |
| Morgan Fairchild | Guest Star | Susan Taylor | |
| Harvey Medlinsky | Director | ||
| Ralph James | Actor | Orson (voice) | |
| Elizabeth Kerr | Actor | Cora Hudson | |
| Pam Dawber | Actor | Mindy McConnell / Herself (2019 Introduction) | |
| Conrad Janis | Actor | Fred McConnell | |
| Robin Williams | Actor | Mork |