Suggestions by @mario_and_luigi

Jason Blum

as Producer in 6teen

Stephen King

as Writer in 6teen

TheFatRat

as Composer in 6teen

Christine Weston Chandler

as Janet in SUPER GRANDAD

Tophia Slydell

as Lily in SUPER GRANDAD

daniel larson

as Natalie in SUPER GRANDAD

Danny Trejo

as Danny in SUPER GRANDAD

Amelia (Poptropica)

as Amelia in SUPER GRANDAD

Max Goof

as Max in SUPER GRANDAD

Nathan Kress

as Nathan in SUPER GRANDAD

Lucy Loud

as Lucy in SUPER GRANDAD

Grand Dad

as Mike in SUPER GRANDAD

Gregory House

as Dr Patterson in SUPER GRANDAD

Jake the Dog

as Jake in SUPER GRANDAD

7 Grand Dad

as Grandad Jones in SUPER GRANDAD

Mike Pollock

as Numpty in Dumb Ways to Die Humans as Live Actors

Tung Tung Tung Sahur

as Tsundere + Idiot in Ship Dynamics

Hasbulla Magomedov

as Law Enforcement + Criminal in Ship Dynamics

Shut up, Meg (Peter Griffin)

as Brooding Boy, Gentle Girl in Ship Dynamics

Goofy and Pete

as Goofy Goof in Ship Dynamics