Any characters not listed with varying degrees of dialogue. There’s lots of side characters, especially in Sonic and Agent Stones‘ stories. Just send an example of your voice range, like a demo or something. Multiple people can be casted for this role.

Note: Some are technically main roles to the story they’re in, just only appear here, are mostly unimportant to the larger Sonic Cinematic Universe, and I don’t see many people auditioning for them.