Suggestions by @valenstaffolani

Bill Murray

as John Herbert in Family Guy

Seth Green

as Mort Goldman in Family Guy

Bai Ling

as Tricia Takanawa in Family Guy

Jordan Peele

as Judge Dignified Q. Blackman in Family Guy

Paul Rudd

as Jonathan Weed in Family Guy

Tina Fey

as Diane Simmons in Family Guy

Steve Carell

as Tom Tucker in Family Guy

Regina Hall

as Loretta Brown in Family Guy

Rob Schneider

as Brian Griffin in Family Guy

Jonah Hill

as Chris Griffin in Family Guy

Mila Kunis

as Meg Griffin in Family Guy

Elizabeth Banks

as Lois Griffin in Family Guy

Ryan Gosling

as Jesus Alzamirano Ramirez in Gravity Falls

Timothée Chalamet

as Bill Cipher in Gravity Falls

Zendaya

as Wendy Corduroy in Gravity Falls

Robert Downey Jr.

as Stanford Pines in Gravity Falls

Chris Pratt

as Stanley Pines in Gravity Falls

Tom Holland

as Mason Pines in Gravity Falls

Millie Bobby Brown

as Mabel Pines in Gravity Falls

Seth Rogen

as Director in South Park