Legends of the Super Mario Bros.

 is a Japanese-American video game series and a spin-off to the Mario series, being developed by and published by Nintendo since TBD 20??.

Synopsis
Set in Mushroomopolis, two brothers travel around to stop a monstrous creature from causing as TBD.

Main

 * Mario (voiced by Charles Martinet) - TBD
 * Luigi (also voiced by Charles Martinet) - TBD

Supporting

 * Peach Toadstool (voiced by Cristina Pucelli) - a tomboyish and TBD girl who befriends Mario and helps him in his adventures TBD.
 * Toad (voiced by TBD) - TBD
 * Yoshi (voiced by [aiming for a cutesy male voice]) - TBD
 * [obviously keeping Daisy and Rosalina]

Antagonists

 * Bowser (voiced by David Sobolov) - TBD

Differences

 * While still with some comedic moments, it takes a darker approach similar to other Nintendo games like Metroid, The Legend of Zelda, Kid Icarus, Star Fox and Fire Emblem and to match rival series such as Sega's Sonic the Hedgehog and Activision's Spyro the Dragon.
 * Peach is changed into a tomboyish woman with no royal heritage as she is also more self reliant TBD.
 * A few characters are removed including Toadsworth, Bowser Jr., TBD.

Trivia

 * While most of the characters are recast, Charles Martinet kept his dual role as Mario and Luigi (keep Wario and Waluigi too, if they appear).
 * According to Nintendo, they opt to not recast them since most people associate Charles to them and it wouldn't be the same if his TBD.