Suggestions by @kipwalker

Dylan O'Brien

as Roy Dillon in The Grifters

Amy Adams

as Lily Dillon in The Grifters

Nicolas Cage

as George W. Bush in Poppy

Ed Harris

as Lyndon B. Johnson in Jack and Jackie

Jon Hamm

as Richard Nixon in Jack and Jackie

Christine Baranski

as Betsy DeVos in Trump

Simon Pegg

as Fetcher in Chicken Run

Nick Frost

as Nick in Chicken Run

Lily James

as Fiona in Shrek

Emma Thompson

as Lillian in Shrek

Peter Dinklage

as Lord Farquaad in Shrek

Kevin Hart

as Donkey in Shrek

Hugh Bonneville

as Smee in Peter Pan

Samuel L. Jackson

as Funk Master Splinter in Teenage Mutant Nigga Turtles

Dan Gilroy

as Director in Taxi Driver

David Krumholtz

as Tom in Taxi Driver

Britt Robertson

as Betsy in Taxi Driver

James Franco

as Sport in Taxi Driver

Dafne Keen

as Iris in Taxi Driver

Dane DeHaan

as Travis Bickle in Taxi Driver