Suggestions by @connieblackwood

Sir Percival (Blaze the Cat)

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

Black Doom

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

Earthia

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

Galaxina

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

Yellow Zelkova

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

Dark Oak

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

Emerl (Sonic X)

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

Emerl

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

Chocola the Chao

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

Topaz (Sonic X)

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

Danny (Sonic X)

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

Bokkun

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

Bocoe

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

Decoe

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

Cheese the Chao

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

Vanilla the Rabbit (Sonic X)

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

Vanilla the Rabbit

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

Cream the Rabbit (Sonic X)

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

Cream the Rabbit

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

Mecha Sonic Mk. I

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