Suggestions by @jurassicjohnny

Shroob

as Replacement for Wart & The 8-Bits in The Super Mario Galaxy Movie (2029)

Princess Shroob

as Replacement for Wart & The 8-Bits in The Super Mario Galaxy Movie (2029)

April Winchell

as Elder Princess Shroob in Mario & Luigi (NCU Series)

Tiya Sircar

as Leaf in The Super Smash Bros. (Season 5)

Ryan Potter

as Red in The Super Smash Bros. (Season 5)

Virginia Dare Jelenic

as Luma in Super Smash Bros. Brawl (NCU)

Ben Campbell

as King K. Rool in Super Smash Bros. Brawl (NCU)

Cody Christian

as Cloud Strife in The Super Smash Bros. (Season 5)

Skye Bennett

as Pyra/Mythra in The Super Smash Bros. (Season 5)

Yuri Lowenthal

as Marth in The Super Smash Bros. (Season 5)

Haley Joel Osment

as Sora in The Super Smash Bros. (Season 5)

Dana Snyder

as King Dedede in The Super Smash Bros. (Season 5)

Makiko Ohmoto

as Kirby in The Super Smash Bros. (Season 5)

Clancy Brown

as Major Burrows in The Super Mario Galaxy Movie (2029)

Juliet Jelenic

as Lumalee in The Super Mario Galaxy Movie (2029)

Dee Bradley Baker

as Duck Hunt Duck in The Super Smash Bros. (Season 5)

Edward Bluemel

as Richter Belmont in The Super Smash Bros. (Season 5)

Kate Micucci

as Nana in The Super Smash Bros. (Season 5)

Jason Ritter

as Popo in The Super Smash Bros. (Season 5)

Ashly Burch

as MailToad (aka. Chantrelle) in The Super Mario Galaxy Movie (2029)