Suggestions by @connieblackwood

Mecha Knuckles

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

Batten Rouge (Rouge the Bat)

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

Prim Rouge (Rouge the Bat)

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

Rebel Rouge (Rouge the Bat)

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

Rouge the Bat (Sonic Prime)

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

Rouge the Bat (Sonic X)

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

Illumina

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

Void (Sonic Shuffle)

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

Lumina Flowlight

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

Omochao

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

Perfect Chaos

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

Chaos (Sonic Adventure DX)

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

Lily (Sonic the Hedgehog)

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

Froggy

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

Catfish (Big the Cat)

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

Hangry Cat (Big the Cat)

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

Big the Cat (Prime)

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

Big the Cat

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

Cyrus (Sonic Underground)

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

Mindy LaTour

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