Suggestions by @heroofolympus

Christopher Judge

as Darkseid (mid credits or post credits scene tease) in Justice League

Hugh Laurie

as Alfred Pennyworth in Justice League

Charles Parnell

as J'on Jonzz in Justice League

Melissanthi Mahut

as Diana Prince in Justice League

Harry Goodwins

as Oliver Queen in Justice League

Sydney Sweeney

as Dinah Lance in Justice League

Brandon Sklenar

as Bruce Wayne in Justice League

Melissanthi Mahut

as Diana prince in Ultimate DC and marvel fancast

Tom Bateman

as Bruce Wayne in Ultimate DC and marvel fancast

Brenton Thwaites

as Scott Summers in Marvel Cinematic Universe

Jason Isaacs

as Erik Lensherr in Marvel Cinematic Universe

Anna Diop

as Ororo Monroe in Marvel Cinematic Universe

Milo Gibson

as James Logan Howlett in Marvel Cinematic Universe

Alexander Skarsgård

as Thor Odinson in Marvel Cinematic Universe

Alexandra Daddario

as Anne Marie in Marvel Cinematic Universe

Norman Reedus

as Johnny Blaze in Marvel Cinematic Universe

Dominic Sessa

as Harry Osborn in Marvel Cinematic Universe

Channing Tatum

as Superman/Clark Kent in The Lego Superman Movie

Mattea Conforti

as Rachel Roth in DCEU Rebooted

Glenn Howerton

as Reverse Flash (Eobard Thawne) in The Flash