It’s Opening Day at Steele Stadium. But team superstar Stephanie ‘Bubbles’ Morgan is in crisis. She’s lost her gotta-have-it, never-play-without-it lucky bubble gum! With just 30 minutes until game time, the Backyard kids embark on a wild mission to track it down and save their season.
| Actor | Role |
|---|---|
 Tiffany HaddishKiesha Phillips (voice) | Kiesha Phillips (voice) |
 Arturo CastroPablo Sanchez (voice) | Pablo Sanchez (voice) |
 Ego NwodimStephanie Morgan/Jocinda Smith (voice) | Stephanie Morgan/Jocinda Smith (voice) |
 Christopher Mintz-PlasseDmitri Petrovich (voice) | Dmitri Petrovich (voice) |
 Donald FaisonDante Robinson (voice) | Dante Robinson (voice) |
 Ashleigh Crystal HairstonSunny Day (voice) | Sunny Day (voice) |
 Adam PallyPete Wheeler (voice) | Pete Wheeler (voice) |
 Utkarsh AmbudkarAchmed Khan (voice) | Achmed Khan (voice) |
 Michael VlamisTony Delvecchio (voice) | Tony Delvecchio (voice) |
| LLindsay BarnettVinnie/Webber Twins (voice) | Vinnie/Webber Twins (voice) |
 Deborah Baker Jr.Kimmy Eckman (voice) | Kimmy Eckman (voice) |