Leo is one of Caillou's buddies. At first, he was mean to Caillou in the episode Caillou at Daycare, but they quickly became friends in the same episode.
In Caillou's Holiday Movie and A Playschool Party, it's revealed he's Jewish and that he celebrates Hanukkah.
Voiced by Johanne Garneau in the French version, Vince Davies in Caillou's Holiday Movie, Jonathan Koensgen from 1997 to 2008 and Graeme Jokic in 2010 and Lucien Duncan-Reid in 2022.
Leo has orange hair and wears a yellow shirt with a red long-sleeve shirt underneath, green pants held up by blue suspenders and red sneakers with blue trim and yellow straps.
Appearances[]
Season 1:[]
- Caillou at daycare (debut)
- Caillou's Friends (flashback)
- Caillou's Birthday Present
- Caillou Sleeps Over
- The Caillou Show
- Caillou Loves Halloween
- Caillou's Picnic
Season 2:[]
- Caillou In Space
- Caillou's Sea Adventure (mentioned)
- Out of the Woods
- Finders Keepers
- Caillou The Great
- Clowning Around
- Leo's Hamster
- Three's a Crowd
- Get Well Soon
- Caillou's Big Discovery
- Backyard Zoo
- Caillou's Crossword
- The Piñata
Season 3:[]
Trivia[]
- His favorite color is green.
- His French voice actress, Johanne Garneau also did the voice of Timmy Tibble (One of the Tibble Twins who wears a blue scarf) in the French version of Arthur (Another show that was produced by CINAR).
- His first voice actor, Jonathan Koensgen also voiced Tommy Tibble in Arthur (Tommy wears a red scarf).
- His second voice actor, Graeme Jokic will later voice Franklin Turtle in another Canadian TV Show, Franklin and Friends.
- Leo is one of the few characters who has orange hair.
- Leo is Jewish and celebrates Hanukkah. (Stated in Caillou’s Holiday Movie)
Gallery[]
Leo dancing with Clementine (My First Piano Book)
Screenshot of Leo (My First Piano Book)
Screenshot of Leo (My First Piano Book)
Screenshot of Leo (My First Piano Book)
| Caillou's Playschool class | ||||||
| Caillou | Clementine | Emma | Jason | Jeffery | Leo | Xavier |



























