Suggestions by @lukejamesbennett

Bolt (Disney Character)

as Robert Wadlow in Characters golden age stars could have played

Sammy Lawerence

as Robert Wadlow in Characters golden age stars could have played

Vilgax (Ben 10)

as Robert Wadlow in Characters golden age stars could have played

Bruton (Dinosaur)

as Robert Wadlow in Characters golden age stars could have played

Aladar

as Robert Wadlow in Characters golden age stars could have played

Canderous Ordo

as Robert Wadlow in Characters golden age stars could have played

Darth Malgus

as Robert Wadlow in Characters golden age stars could have played

Taurus Bulba

as Robert Wadlow in Characters golden age stars could have played

Whitey (Flushed Away)

as Robert Wadlow in Characters golden age stars could have played

Minion (Megamind)

as Robert Wadlow in Characters golden age stars could have played

General Grievous

as Robert Wadlow in Characters golden age stars could have played

Satan (Helluva Boss)

as Robert Wadlow in Characters golden age stars could have played

Four Arms

as Robert Wadlow in Characters golden age stars could have played

Weaver (ANTZ)

as Robert Wadlow in Characters golden age stars could have played

Diesel 10

as Robert Wadlow in Characters golden age stars could have played

Drake (The Pebble and the Penguin)

as Robert Wadlow in Characters golden age stars could have played

Hellboy (Anung Un Rama)

as Robert Wadlow in Characters golden age stars could have played

Darkseid

as Robert Wadlow in Characters golden age stars could have played

Big Daddy (Sing)

as Robert Wadlow in Characters golden age stars could have played

Johnny (Sing)

as Robert Wadlow in Characters golden age stars could have played