Suggestions by @aloloco

Buddy Guy

as Blues Rock in Music Tropes

Roz Doyle

as Lisa Kudrow in Roles That Actors / Actresses Were ALMOST Casted

Shaggy Rogers (Scooby-Doo)

as Jim Carrey in Roles That Actors / Actresses Were ALMOST Casted

Detective Sergeant Mike Lowrey (Bad Boys)

as Dana Carvey in Roles That Actors / Actresses Were ALMOST Casted

Dana Carvey

as Jimmy Fallon in Roles That Actors / Actresses Were ALMOST Casted

Born on the Fourth of July

as John C.McGinley in Roles That Actors / Actresses Were ALMOST Casted

Bill Lumbergh

as John C.McGinley in Roles That Actors / Actresses Were ALMOST Casted

Residente

as Cousin in Celebs you didn't know were relatives

Lin-Manuel Miranda

as Cousin in Celebs you didn't know were relatives

Kendrick Lamar and Baby Keem

as Cousin in Celebs you didn't know were relatives

Tuxedo Mask

as Gerardo Reyero in Characters actors have played or will play

Quincy Jones

as Donald Glover in Roles That Actors / Actresses Were ALMOST Casted

Mad Max: Fury Road

as Mel Gibson in Roles That Actors / Actresses Were ALMOST Casted

Detective Sergeant Mike Lowrey (Bad Boys)

as Eddie Murphy in Roles That Actors / Actresses Were ALMOST Casted

The Penguin (1960s Batman)

as Spencer Tracy in Roles That Actors / Actresses Were ALMOST Casted

The Joker (1960s Batman)

as José Ferrer in Roles That Actors / Actresses Were ALMOST Casted

The Joker (1960s Batman)

as Gig Young in Roles That Actors / Actresses Were ALMOST Casted

James Woods

as Jack "Joker"Napier in Actors who were almost cast in Major DC Roles

David Bowie

as Jack "Joker"Napier in Actors who were almost cast in Major DC Roles

Pierce Brosnan

as Batman in Actors who were almost cast in Major DC Roles