- Tails as Stan
- Sonic as Kyle (are caring, hot-blooded protagonists)
- Amy as Cartman (both wear red and have a mean streak)
- Tikal as Kenny (both have had unfortunate things happen to them)
- Cream as Butters (both are naive and oblivious)
- Cosmo as Wendy (both are the love interest of Tails and Stan, respectively)
- Silver as Clyde
- Blaze as Bebe
- Rouge as Craig
- Shadow as Tweek
- Espio as Token
- Vanilla and Vector as Mr. and Mrs. Stotch (Vanilla is Cream's mother and Vector is in love with Vanilla)
- Tekno as Liane Cartman
- Mario and Peach (Mario Bros.) as Randy and Sharon Marsh
- Sir Vincent and Madame Zoe (MySims) as Gerald and Sheila Broflovski
- Geoffrey St. John and Hershey the Cat as Kenny's parents
- Mama (Cooking Mama) as Mr./Mrs. Garrison
- Axel (Kingdom Hearts) as Chef
- Pheonix Wright (Pheonix Wright) as Officer Barbrady
- Cheese as Ike
- Scourge as Pip
- Rosy as Damien
- Sally as Shelly
- Daisy (Mario Bros.) as Uncle Jimbo
- E-123 Omega as Ned
- Meta Knight (Kirby) as Mr. Mackey
- Lenora (Pokemon) as Principal Victoria
- Marine as Terrence
- Mighty as Phillip
- Uncle Chuck as Les Claypool
- Sonic Park theme song
- Sonic's Mom's a Pain
- A Lonely Freak on Christmas
- What Would Brian Boitano Do? (Sonic ver.)
- Mountain Town (Sonic ver.)
- Everyone Knows it's Cream
- The Dreidel Song (Sonic ver.)
- Montage Song (Sonic ver.)
- Blame Canada (Sonic ver.)
- There's a Girl I Like (Sonic ver.)
- Come Sail Away (Sonic ver.)
- Poker Face (Sonic ver.)
Theme Song Lyrics
Chuck: I'm goin' down to Sonic Park gonna have myself a time!
Sonic and Tails: Friendly faces everywhere, humble folks without temptation!
Chuck: Goin' down to Sonic Park gonna leave my woes behind!
Amy: Ample parking day or night, people spouting "Howdy neighbor!"
Chuck: Headin' on down to Sonic Park gonna see if I can't unwind!
Tikal: (I like guy with pretty eyes, I like guys with awesome dreadlocks!)
Chuck: So come on down to Sonic Park and meet some friends of mine!
- Amy and Sonic's casting is ironic, as their relationship can be seen as a sort of "love-hate" thing, which could be interpretted from Cartman and Kyle's friendship.
- It's called Sonic Park, although due to lack of Sonic characters and pairings, non-Sonic characters are used.
- Some of the usual South Park elements have been toned down for the respect and safety of others.
- So far, the only planned celebrity character in my parody is Les Claypool.
- He technically doesn't count since he is always in the show (the theme song).
- Most characters are from the StH series, but some are from other games.