School of Roars

• Wufflebump (voiced by Che Grant) is a five-year-old purple "rhino" monster who lives in a volcano. He's the leader of the young monsters. He can be clumsy, as he often trips over his own tail. His Italian name is "Burlagiu".
• Icklewoo (voiced by Rosie Cooper-Kelly) is a three-year-old yellow monster who lives in a flower windmill. She doesn't roar as loud as the others do, as she's shy. Her Italian name is "Minilu".
• Yummble (voiced by Max Pattison) is a five-year-old orange monster who lives in a giant mushroom and loves to eat. He's the best friend of Wufflebump. Because of his appetite, he can have a hard keeping any kind of food where it is by gobbling it up and breaking the adults' rules of not eating them at the wrong times. He has tons of favourite foods. His Italian name is "Iammi".
• Meepa (voiced by Ellie Gee) is a four-year-old green alien monster who lives in a tree flat and has four hands. She likes to say her name twice ("Meepa! "Meepa!"), as she can never stop talking. She has a love for monster animals. She has the most flexible body out of anyone in the School of Roars. Her Italian name is "Mipa".
• Wingston (voiced by Ben Guiver) is a four-year-old blue "bat" monster who lives in a castle and is the smartest. He's depicted as the fastest monster in the school thanks to his wings, size, and energy. His Italian name is "Wingy".
• Miss Grizzlesniff (voiced by Kathy Burke) is a red tyrannosaurus rex-like monster and the teacher of the School of Roars. Her catchphrase is "Oh my claws!". She's one quirky teacher.

• Miss Sneezle (voiced by Jessica Robinson) is the school nurse.
• Miss Twirlyhorn (voiced by Sarah Lancashire) is the headmonstress of the School of Roars.
• Mr Marrow (voiced by Andrew Scott) is the chef who works in the café at the School of Roars.
• Mr Snapper (voiced by Andrew Scott) is a photographer that looks like a crocodile. He does not work at the School of Roars, but he visits when it is in need of a camera.
• Mr Bogglelots (voiced by Andrew Scott) is the school optician.
• Mrs Wufflebump (voiced by Jessica Robinson) is Wufflebump's mother
• Mr Wufflebump (voiced by Alan Robinson) is Wufflebump's father
• Growlbert (vocal effects provided by Alan Robinson) is Wufflebump and his parents’ pet monster dog
• Mr Yummble (voiced by Andrew Scott) is Yummble's father
• Mrs Yummble is Yummble's mother
• Yummble's Little Brother
• Yummble's Little Sister
• Mrs Meepa is Meepa’s mother
• Mr Meepa is Meepa’s father only seen a few times in the show
• Mrs Icklewoo is Icklewoo’s mother
• Mr Icklewoo is Icklewoo’s father
• Mr Wingston (voiced by Andrew Scott) is Wingston's father. He works as a mailman monster
• Granny Wingston is Wingston's grandmother
• The Narrator (voiced by Andrew Scott). He begins every episode with the words "a super snuffle-some night at the School of Roars".

1. School Library

2. Monster Post

3. Paws and Claws

4. Breakfast Club

5. The Daily Growl

6. Ringo

7. Fangella’s Biggest Fan

8. Puppet Show

9. Computer Bug

10. Grizzletown

11. Grumble Plant

12. Beaster Eggs

13. Pumpkin Parade

14. Shop Meepa

15. Bird Feeder

16. Monster Cave

17. Squeezing In

18. Boring Box

19. Funky Frames

20. Call Miss Sneezle

21. I Hear Thunder

22. Hot Cakes

23. Big Monsters

24. Mr Babble Beast

25. Interesting Monster

26. Frosty Claws

27. School Disco

28. Standing Tall

29. School Camp

30. Monster Picnic