Cast[]
- David (from All Dogs Go to Heaven 2) as Alex
- Sean (from Journey 2: The Mysterious Island) as Tuck Simms
- Hank (from Journey 2: The Mysterious Island) as Munch
- Anne-Marie (from All Dogs Go to Heaven) as Emma
- Snowball as Dr. Lawrence Masden
- Silas Ramsbottom (from Despicable Me 2) as Calvin
- Mr. O'Hare (from Dr. Seuss' The Lorax) as Mookie
- Buddy as Pawn Shop Owner
- E.B. (from HOP) as Joey
- Chloe as Charlie
- The Once-ler's Mom (from Dr. Seuss' The Lorax) as Dusty
- Gidget as Tuck's Mom
- Duke as Emma's Dad
- Max as Blake
- Max and Duke's Owner as Emma's Mom
- Gru (from Despicable Me) as Security Guard