Suggestions by @mephilesthedark

Darkseid

as Up Next in Superman (Horror Movie)

Emperor Sheev Palpatine (Darth Sidious)

as Up Next in Superman (Horror Movie)

Five Nights At Freddy's

as Up Next in Superman (Horror Movie)

Azula

as Up Next in Superman (Horror Movie)

Fire Lord Ozai

as Up Next in Superman (Horror Movie)

Reverse-Flash

as Up Next in Superman (Horror Movie)

Keith David

as Perry White in Superman (Horror Movie)

Keith David

as Jor-Athh in Superman (Horror Movie)

Richard Jenkins

as Jonathan Kelso in Superman (Horror Movie)

Richard Kind

as Jonathan Kelso in Superman (Horror Movie)

Brendan Fraser

as Jonathan Kelso in Superman (Horror Movie)

Mary Steenburgen

as Martha Kelso in Superman (Horror Movie)

Auli'i Cravalho

as Lois Lane in Superman (Horror Movie)

Jacob Tremblay

as Jimmy Olsen in Superman (Horror Movie)

Idris Elba

as President Luthor in Superman (Horror Movie)

Keith David

as President Luthor in Superman (Horror Movie)

Dave Bautista

as President Luthor in Superman (Horror Movie)

Robert Downey Jr.

as President Luthor in Superman (Horror Movie)

Bill Skarsgård

as President Luthor in Superman (Horror Movie)

Alexander Skarsgård

as President Luthor in Superman (Horror Movie)