Ryan "Sumo" Sumouski is one of the three main protagonists (More as a deuteragonist) in Clarence. He is one of Clarence's friends. He loves to do all sorts of crazy things so that he can enjoy having fun with Clarence, Jeff, and everyone else. Like his friends, he is socially awkward. He was originally voiced by Jason Marsden in the "Pilot," but was replaced by Tom Kenny in the series.
Sumo is a scrappy, streetwise kid who grew up on the right side of the wrong side of the tracks. When problems arise, Sumo's solutions are unorthodox and often messy. A wild card and fearless to a fault, Sumo is unpredictable, independent, and often acts without thinking things all the way through. Sumo is fiercely loyal to his friends, and always available. Jeff and Sumo are polar opposites, but Clarence bridges the gap between them. Sumo is the instinctual third of this trio. However "Chimney" it is shown that he is quite handy as he was able to build a ladder out of sticks and shoe laces.
Sumo used to have long, brassy hair, but asked Clarence to cut it, as heard in the "Pilot." He currently has no hair at all, except for several strands. He has a big forehead, small, and somewhat crooked teeth, with spaces in between some, and has big eyes and big pupils as well. Sumo wears a black t-shirt, cut-off jean shorts, and dark red boots.
In Season 3, he wears a West Aberdale Elementary uniform, which it consists forest green short sleeve shirt and khaki pants, for which Sumo cut them off to match his other clothing.
- "Fun Dungeon Face Off"
- "Pretty Great Day with a Girl
- "Money Broom Wizard"
- "Lost in the Supermarket"
- "Clarence's Millions"
- "Clarence Gets a Girlfriend"
- "Jeff's New Toy"
- "Dollar Hunt"
- "Zoo" (mentioned)
- "Man of the House"
- "Puddle Eyes"
- "Dream Boat" (Major role)
- "Slumber Party"
- "Nature Clarence"
- "Average Jeff"
- "Lizard Day Afternoon"
- "The Forgotten"
- "Neighborhood Grill"
- "Belson's Sleepover"
- "Too Gross For Comfort"
- "Pilot Expansion"
- "Rough Riders Elementary"
- "Nothing Ventured"
- "Bedside Manners"
- "Jeff Wins"
- "Turtle Hats"
- "Goldfish Follies"
- "Straight Illin"
- "Hoofin' It"
- "Lil' Buddy"
- "Tuckered Boys"
- "Water Park"
- "Breehn Ho!"
- "The Big Petey Pizza Problem"
- "The Break Up"
- "In Dreams"
- "Spooky Boo"
- "Lost Playground"
- "Bird Boy Man" (major role)
- "Freedom Cactus"
- "Escape from Beyond the Cosmic"
- "Ren Faire"
- "Time Crimes"
- "Saturday School"
- "Attack the Block Party"
- "Field Trippin'"
- "Ice Cream Hunt"
- "Stump Brothers" (Major role)
- "Sneaky Peeky"
- "The Tails of Mardrynia"
- "Clarence Wendle and the Eye of Coogan" (Non-speaking role)
- "Gameshow" (cameo)
- "Skater Sumo"
- "Mystery Girl"
- "The Substitute"
- "Jeff's Secret" (mentioned)
- "Space Race"
- "Plant Daddies"
- "Bucky and the Howl"
- "Clarence and Sumo's Rexcellent Adventure"
- "Tree of Life"
- "Capture The Flag"
- "Cloris" (mentioned)
- "Fishing Trip"
- "Belson's Backpack"
- "Merry Moochmas"
- "Pizza Hero"
- Clarence - Issue 1
- Clarence - Issue 2
- Clarence - Issue 3
- Clarence - Issue 4
- Clarence - Rest Stops
- Dear Future Me Clarence
- The Clarence Book of Friends and Other People He Likes
- Clarence: Mad Libs
- Clarence - Chicken Phantom
- The Clarence Summer Activity Book
- Clarence's Amazing Day Out!
- Clarence Saves the Day
- Awesomest Battle In History
- Thirty Days & Seven Seas
- Clarence Lizard Day Hunt
- Clarence - The two of them enjoy doing lots of cool and fun stuff together. He can also be a bad influence on Clarence sometimes and he will constantly get them into some trouble.
- Jeff - Sumo finds Jeff a bore. Even though they did have fun at Jeff's house when Clarence was away, he still finds him boring. The two of them are friends, but Clarence seems to be the one that glues their friendship together.
- Belson - Sumo hates Belson because he's a jerk, but he did like where he dumped trash on him and stole Belson's Acedia video game console.
The gallery for Sumo can be found here.
- Sumo has -5 buddy stars in "Clarence's Millions," since Ms. Baker "took" one away.
- Sumo is less wild, and noticeably more smart and serious in "Jeff's New Toy".
- He has a yellow backpack as seen in some episodes.
- In "Rough Riders Elementary", his name is revealed to be Ryan.
- In "Nothing Ventured", in the police sketch drawing he resembled Popeye.
- Sumo's the only one bald in the trio.
- Sumo is the only one in the trio that has ears, which Clarence and Jeff lacks.
- The same gag from "Jeff's New Toy", where Sumo punches Jeff when he freaked out because he woke him up. was reused in "Nothing Ventured", except Clarence avoided.
- As in Dollar Hunt, Sumo's brothers made him a cake out of sponges and shaving cream.
- In Dream Boat, Sumo has over 12 siblings 9 young brothers, 2 older brothers and one sister.
- It's unknown how Sumo knows Cooter and Seabass.
- He won the Acedia 64 on not getting pranked.
- Sumo kind of has feelings for Clarence in the episode, "Straight Illin".
- Sumo finds math and tests boring.
- For some reason, Sumo flips out while hearing sqeaky noises, thereby causing him to disort outlines.
- "Nature Clarence" was the only episode Sumo had a supporting role.
- In "Bird Boy Man", He was the 2nd character to be shown nude.
- First being Clarence in "Goose Chase".
- In Dream Boat, his last was "Sumozski", but however in "Space Race", it spelled as "Sumouski", while in Sumo Goes West, last name was once again is "Sumowski", although it is unknown if this is a spelling error.
- This led to a minor confusion and controversy in regarding to the last name changes, that had affect two other characters, Such as Clarence (who went from Wendell to Wendle) and Jeff (Who went from Randall to Randell).
- In Sumo Goes West, Sumo and the other selected kids no longer goes to Aberdale Elementary as they moved to West Aberdale Elementary, due to the mayor cutting portion of the area, which Sumo's House is at and where it affected the school, eliminating a least three kids from the school.