The Great Mobian Detective

Cast

Basil of Baker Street: Sonic the Hedgehog (Sonic the Hedgehog franchise)

Extras with Sonic: Knuckles the Echidna, Silver the Hedgehog, Blaze the Cat, Charmy Bee, Espio the Chameleon, Vector the Crocodile, Shadow the Hedgehog, Rouge the Bat, E-123 Omega, and Max the Wolf (Sonic the Hedgehog franchise; Knuckles can be Basil's annoyed side towards Satsuki and Mei at first while Sonic and the rest of his group can be nice and be softies towards Satsuki and Mei)

Dr. David Q. Dawson: Miles "Tails" Prower (Sonic the Hedgehog franchise)

Extras with Tails: Tikal, Big the Cat, Froggy, Cream the Rabbit, Cheese the Chao, and Kayla the Wolf (Sonic the Hedgehog franchise)

Olivia Flaversham: Satsuki and Mei Kusakabe (My Neighbor Totoro; With Satsuki wearing the sundress on the day Mei got lost)

Olivia's boyfriend: Kanta Ogaki (My Neighbor Totoro)

Basil's wife: Amy Rose (Sonic the Hedgehog franchise)

Toby: Toto (Tom and Jerry and the Wizard of Oz)

Professor Ratigan: Myotismon (Digimon; With his monster form Malomyotismon)

Extras with Myotismon: Hunter J (Pokemon), Vanitas (Kingdom Hearts: Birth by Sleep), Mephiles the Dark (Sonic the Hedgehog '06), and Infinite (Sonic Forces)

Fidget: The Gangreen Gang (The Powerpuff Girls (1998)) and the Dazzlings (My Little Pony: Equestria Girls; They can turn good after being double-crossed by Myotismon's group and their men)

Extra with the Gangreen Gang and Dazzlings: Demidevimon (Digimon; He'll be the Fidget who is thrown overboard at the end)

Mrs. Judson: Cosmo the Seedrian (Sonic X), Spike, Ember (My Little Pony: Friendship is Magic), the Mane Seven, and the Stallion Seven (My Little Pony: Equestria Girls; These guys'll join the adventure)

Extra with Cosmo: Daisy Duck (Disney; She can stay behind)

Queen Moustoria: Queen Elinor (Brave)

Extra with Elinor: Merida (Brave; She can help Sonic, Amy, and the others by rescuing her mother)

Hiram Flaversham: Tatsuo and Yasuko Kusakabe (My Neighbor Totoro)

Miss Kitty Mouse: Jessica Rabbit (Who Framed Roger Rabbit)

Miss Kitty's sisters: Mimi Tachikawa (Digimon) and Miss Nurse (Animaniacs)

Ratigan's thugs: Stays the same

Bartholomew: Stays the same

Felicia: Lucifer (Cinderella (1950))

Barmaid: Stays the same

Bartender: Stays the same

Lady Mouse: Princess Oriana (Felix the Cat the Movie)

Chapters

Chapter 1: Opening/Tatsuo and Yasuko Kidnapped

Chapter 2: Tails' Group Finds Mei and Satsuki/Meeting Sonic's Group

Chapter 3: Myotismon's Group's Plot/The World's Greatest Criminal Minds

Chapter 4: The Case is On/Getting Toto's Help

Chapter 5: Toy Store Investigation/Mei, Satsuki, Amy, and Cosmo Captured

Chapter 6: Somewhere Out There/Myotismon's Group's Plan Against Sonic's Group

Chapter 7: Observation/Let Me Be Good to You

Chapter 8: At the Lair/Captured and Escape

Chapter 9: Saving Elinor, Cosmo, Tatsuo, and Yasuko/Myotismon's Group's Plot Exposed

Chapter 10: Air Chase/Final Battle on Top of Big Ben

Chapter 11: Case Solved Aftermath/Ending