Tails and Cream/Mario

Tails as Mario

Ryan as Luigi

Vanilla as Princess Peach(They both wear Pink Dresses)(Cream is too young to play Princess Peach)

Cream as Toadette(Same as Sonic/Mario)

Charmy as Yoshi

Classic Sonic as Bowser

Classic Tails as Bowser Jr.

Amy as Birdo(They both are pink)

Sonic as Toad