Suggestions by @ethelthecreator

Samuel L. Jackson

as Ford Pines in Gravity Falls

Xochitl Gomez

as Grenda in Gravity Falls

Anna Cathcart

as Candy in Gravity Falls

Timothée Chalamet

as Robbie in Gravity Falls

Maya Hawke

as Wendy in Gravity Falls

Bella Ramsey

as Mabel Pines in Gravity Falls

Noah Schnapp

as Dipper Pines in Gravity Falls

Jharrel Jerome

as Soos in Gravity Falls

Samuel L. Jackson

as Grunkle Stan in Gravity Falls

Halsey

as Princess Genevieve in All Your Fallen Angels

Spoiler

as Princess Genevieve in All Your Fallen Angels

Rahul Kohli

as Telliran in All Your Fallen Angels

Lana Condor

as Shiva in All Your Fallen Angels

Regé-Jean Page

as Bex Calderan in All Your Fallen Angels

Vera Farmiga

as Queen Lila in All Your Fallen Angels

Issa Rae

as Aloe Aviniah in All Your Fallen Angels

Joaquin Phoenix

as King Amon in All Your Fallen Angels

Halsey

as Quantico in All Your Fallen Angels

Andy Serkis

as North in All Your Fallen Angels

Paul Mescal

as Ellis in All Your Fallen Angels