Suggestions by @spideyprowler

Walrus

as Willy in Sonic the Hedgehog Encyclopedia

Score: +1

Walrus

as Lady in Sonic the Hedgehog Encyclopedia

Score: +1

Fox

as Zooey in Sonic the Hedgehog Encyclopedia

Score: +1

Otter

as Dave in Sonic the Hedgehog Encyclopedia

Score: +1

Eagle

as Soar in Sonic the Hedgehog Encyclopedia

Score: +1

Sea otter

as Captain Shellbreaker in Sonic the Hedgehog Encyclopedia

Score: +1

Mongoose

as Ash in Sonic the Hedgehog Encyclopedia

Score: +1

Fox

as Fiona in Sonic the Hedgehog Encyclopedia

Score: +1

Lynx

as Nicole in Sonic the Hedgehog Encyclopedia

Score: +1

Rabbit

as Bunnie D'Coolette in Sonic the Hedgehog Encyclopedia

Score: +1

Sheep

as Lanonil in Sonic the Hedgehog Encyclopedia

Score: +1

Coyote

as Antoine D'Coolette in Sonic the Hedgehog Encyclopedia

Score: +1

Monkey

as Ken Khan in Sonic the Hedgehog Encyclopedia

Score: -1

Badger

as Sticks in Sonic the Hedgehog Encyclopedia

Score: +1

Hedgehog

as Scourge in Sonic the Hedgehog Encyclopedia

Score: +1

Rabbit

as Cream in Sonic the Hedgehog Encyclopedia

Score: +1

Squirrel

as Sally in Sonic the Hedgehog Encyclopedia

Score: +1

Walrus

as Rotor in Sonic the Hedgehog Encyclopedia

Score: +1

Echidna

as Tikal in Sonic the Hedgehog Encyclopedia

Score: +1

Echidna

as Dr. Finitevus in Sonic the Hedgehog Encyclopedia

Score: +1