Suggestions by @connieblackwood

Sinbad the Sailor (Knuckles the Echidna)

as Red Hair + Purple Eyes in Characters' Hair/Eye Color Combinations

Maggie the Wisp

as Purple Hair + Green Eyes in Characters' Hair/Eye Color Combinations

Magenta Wisp

as Purple Hair + Green Eyes in Characters' Hair/Eye Color Combinations

Doom Shadow

as Black Hair + Red Eyes in Characters' Hair/Eye Color Combinations

Johnny (Sonic)

as Green Hair + Yellow Eyes in Characters' Hair/Eye Color Combinations

Captain Whisker

as White Hair + Blue Eyes in Characters' Hair/Eye Color Combinations

Erazor Djinn

as Red Hair + Red Eyes in Characters' Hair/Eye Color Combinations

Pachacamac the Echidna

as White Hair + Blue Eyes in Characters' Hair/Eye Color Combinations

Hero Chao

as White Hair + White Eyes in Characters' Hair/Eye Color Combinations

Ariem

as Blue Hair + Pink Eyes in Characters' Hair/Eye Color Combinations

Trip the Sungazer

as Orange Hair + Brown Eyes in Characters' Hair/Eye Color Combinations

Barry the Quokka

as Red Hair + Green Eyes in Characters' Hair/Eye Color Combinations

Unit (SCU)

as White Hair + Red Eyes in Characters' Hair/Eye Color Combinations

Clutch the Opossum

as Green Hair + White Eyes in Characters' Hair/Eye Color Combinations

Ozzie (Sonic the Hedgehog)

as Blonde Hair + Brown Eyes in Characters' Hair/Eye Color Combinations

Longclaw (SCU)

as Brown Hair + Green Eyes in Characters' Hair/Eye Color Combinations

Dodon Pa

as White Hair + Blue Eyes in Characters' Hair/Eye Color Combinations

Jewel the Beetle

as Blue Hair + Pink Eyes in Characters' Hair/Eye Color Combinations

Starline

as White Hair + Red Eyes in Characters' Hair/Eye Color Combinations

Tumble the Skunk

as White Hair + Brown Eyes in Characters' Hair/Eye Color Combinations