Cast and credits of Mario Superstar Baseball

Charles Martinet
Mario / Luigi / Baby Mario / Baby Luigi / Wario / Waluigi / Toadsworth / Piantas (voice)

Hironori Miyata
King Boo (voice)

Kazumi Totaka
Yoshi / Birdo (voice)

Dolores Rogers
Bowser Jr. (voice) (as Delores Rogers)

Deanna Mustard
Daisy (voice)

Katsumi Suzuki
Diddy Kong (voice)

Sanae Uchida
Boo (voice) (as Sanae Susaki)

Takashi Nagasako
Donkey Kong (voice)

Nate Bihldorff
Shy Guy (voice)

Tôru Minegishi
Petey Piranha (voice)

Scott Burns
Bowser (voice) (uncredited)

Stephen Kearin
Goomba / Para-Goomba / Monty Mole (uncredited)

Daniel Ross
Koopa Troopa / Koopa Paratroopa (uncredited)

Jen Taylor
Princess Peach / Toad / Toadette (voice) (uncredited)