The other Characters appear in every episode from The Powerpuff Girls Crossover.
- Young Autobot
- Grievous
- Shaak ti
- Rampage
- Lola
- Embo
- Brick
- Butch
- Boomer
- Flame Princess
- Finn
- Skips
- Bugs
- Fox
- Rabbit
- Tron
- Skunk
- Kelsey
- Ranae
- Sensei Wu
- Sideways
- War
- Death (Horsemen)
- Devastator
- CJ
- Daffy Duck
- Tina Russo Duck
- Dawn
- Ironhide
- Jenny
- Shockwave
- Megatron
- Starscream
- Unicron
- Sedusa
- Skyquake
- Eddy Cougar
- Count Dooku
- Pythor
- Dreadwing
- Constrictai
- Fangpyre
- Hypnobrai
- Venomari
- Lord Garmadon
- Lord Grim
- Fright Hound
- Slime Mutant
- Baboon
- The Great Devourer
- Clu
- Skales
- Abraxas
- The Freak
- Biowolf
- Van Kleiss
- Aku
- Berserk
- Brat
- Brute
- Captain Gutt
- Sardon Killhees
- Soundwave
- Optimus Prime
- Skipper Shelton
- Sheriff Bronson Stone
- Raz
- Mr. E
- Driller (Flashback only)
- Loretta
- Benedict
- Damien
- GIR
- Bunny (Flashback only)
- The Lava Monster
- Cierra
- Gaz
- Dib
- Mandy
- Mimi
- Masami
- Molly
- Carmen
- Robots
- Mammon
- Pinky
- Brain