What roles do the new cast members play in the super mario galaxy movie?

The only verified source provided discusses the 1993 feature film Super Mario Bros., a live‑action adaptation of Nintendo’s video game series. It lists the main actors—Bob Hoskins as Mario, John Leguizamo as Luigi, Samantha Mathis as Princess Daisy, and Dennis Hopper as President Koopa—as well as the director duo Rocky Morton and Annabel Jankel. No details about a Super Mario Galaxy movie, its cast, or any new cast members appear in the cited evidence. Consequently, the question about new cast roles in that film cannot be answered with the information at hand. Any answer would require additional sources that specifically reference a Super Mario Galaxy movie and its cast.