Charlie and Lola/The Little Engine That Could

Jinmay (from Super Robot Monkey Team Hyperforce Go!) as Tillie

Lotta as Georgia

The Hedgehog as Doc

The Doctor as Farnsworth

Charlie as Pete

Marv as Jebediah

Lola as Chip

Morten as Eric

Soren Lorensen as Rollo the Clown

Nova (from Super Robot Monkey Team Hyperforce Go!) as Grumpella

Chiro (from Super Robot Monkey Team Hyperforce Go!) as The Big Bad Wolf

and more