A dog named Luna and her owner interact with each other and other pets as they attempt to find Luna a significant other.
| Actor | Role |
|---|---|
 Rumer WillisLuna (voice) | Luna (voice) |
 Kyle KriegerHimself | Himself |
 Skylar AstinCrouton (voice) | Crouton (voice) |
 Tyler OakleyToby (voice) | Toby (voice) |
 Lance BassRalphie (voice) | Ralphie (voice) |
 Courtney ActKoda (voice) | Koda (voice) |
 Leslie Odom Jr.Oscar (voice) | Oscar (voice) |
 Brad GoreskiBunnie (voice) | Bunnie (voice) |
 Robbie RogersFrankie (voice) | Frankie (voice) |
 Darren CrissRufus (voice) | Rufus (voice) |
 Levi FreemanHot Boy at Runyon | Hot Boy at Runyon |
| AAnton Luke GutierezzHot Boy at Runyon | Hot Boy at Runyon |
| BBenny PughHot Boy at Runyon | Hot Boy at Runyon |