Suggestions by @giacomooffredi

Mark Hamill

as Dr Eggman in New Sonic Fan casting

Erika Harlacher

as Tails The Fox in New Sonic Fan casting

DinoSquad

as Tite Kubo in If this Comic Artist, Manga Artist or Character Designer designs...

Eruptor

as Yoshi-tsugu Matsuoka in New voices for the actors

Coupé (Dispatch)

as Ami Koshimizu in New voices for the actors

Malevola Gibb

as Saori Hayami in New voices for the actors

Prism (Dispatch)

as Marina Inoue in New voices for the actors

Golem (Dispatch)

as Daisuke Ono in New voices for the actors

Flambae

as Yoshi-tsugu Matsuoka in New voices for the actors

Waterboy (Dispatch)

as Yuki Kaji in New voices for the actors

Punch Up

as Wataru Takagi in New voices for the actors

Chase / Track Star

as Wataru Takagi in New voices for the actors

Invisigal

as Mariya Ise in New voices for the actors

Blonde Blazer

as Miyuki Sawashiro in New voices for the actors

Robert Robertson III / Mecha Man Blue

as Taito Ban in New voices for the actors

Sonar (Dispatch)

as Jun Fukuyama in New voices for the actors

Kasuka na Hana (Tatsuya Kitani x BABYMETAL)

as Opening Theme Inspiration (Season 4) in My Adventures With Sonic The Hedgehog 2

Hayden Christensen

as Shadow the Hedgehog in Classic Sonic Adventures

Diane Foxington

as Guest Fighters in Scott Pilgrim: All-Star Brawl

Spoiler

as Hands off my friends (The birth of Super Sonic, the real one) in Classic Sonic Adventures