Characters from The Bite-Sized Adventures of Sam Sandwich wiki.
- Sam Sandwich - The main protagonist of the mini-series, he's a hero sandwich and always stops his foes from serving bad food in his town. He is voiced by Wally Wingert, who portrays Orbot in the Sonic the Hedgehog video games.
- Salad Lad- He's Sam Sandwich's sidekick, he makes inventions to help Sam stop his enemies, Sam's nickname for him is "Sal". He is voiced by Scott Menville.
- David - He's the only human in the miniseries, and thus the only character portrayed in live-action instead of stop motion. In every single episode, when he notices something unhealthy or suspicious about his food or something odd about food and drinks, he communicates with Sam and Sal on the Giant Video Screen. Portrayed by Jake T. Austin.
- Sweet Tooth - Sweet Tooth is a sweet, but sinister villain who wants kids to eat lots and lots of sugar. She has a cupcake for a head. She speaks with a southern drawl, has enormous pink lips, and wears a frumpy polka-dotted dress, she wears bright pink pants and dark pink boots. Sam Sandwich always refers to her as his "cupcake craniumed nemesis", implying she is Sam's main, or at least most powerful enemy. She is voiced by Cree Summer
- Fry-Borg - Fry-Borg is a giant robot who wants kids to eat deep fried food. He keeps his gears greased with oil. Without it, Fry-Borg can't move and then immediately shuts down. He has large blue boulbous eyes. He is voiced by Morgan Freeman.
- Salty Pup - Salty Pup is a pirate dog who wants kids to eat salty food, he has a pirate ship with its body shaped like a saltshaker. He is voiced by Flea.
- Big Cheese - Big Cheese is a cheesy villain who wants kids to eat mega-sized meals, his head is literally "big cheese". he is voiced by Frank Welker.