Suggestions by @henryrundus

Jack Black

as Ving in Crash nebula

'Weird Al' Yankovic

as Pa Speevak in Crash nebula

Tara Strong

as Titus Speevak in Crash nebula

Dwayne Johnson

as Rockwell in Crash nebula

Angie Wu

as Ani in Crash nebula

Tom Kenny

as Dif in Crash nebula

Mandy Moore

as Princess Galaxandra in Crash nebula

Cholë Grace Moretz

as Seirra Speevak in Crash nebula

Patrick Warburton

as Chuck in Crash nebula

Rosie O'Donnell

as Pam Dromeda in Crash nebula

Debi Derryberry

as Drone in Leo (90’s)

Aaron Blabey

as Animal handler in Leo (90’s)

Frank Welker

as Mini horse in Leo (90’s)

Kim Cattrall

as News lady in Leo (90’s)

Matt Groening

as Road rage driver in Leo (90’s)

Dan Castellaneta

as Jayda’s dad in Leo (90’s)

Matt Groening

as Producer in Leo (90’s)

Kristen Bell

as Erin Mudrick in For whom the cave tolls

Carl Azuz

as Golfer in Leo (90’s)

John Goodman

as Cinnabun in Leo (90’s)