Suggestions by @ceejeezy
16,231 suggestions
Steve Valentine
as Mr Sinister in What if the X-Men were cast today
Steve Valentine
as Nathaniel Essex in X-Men
Steve Valentine
as Mister Sinister/Nathaniel Essex in Bryan Seeker's Marvel Cinematic Universe X-Men
Steve Valentine
as Nathaniel Essex in MCU
Steve Valentine
as Mr Sinister in Future MCU Characters
Steve Valentine
as Mr Sinister in X-Men Fan Casting MCU
Steve Valentine
as Mister Sinister in X-Men (90's)
Steve Valentine
as Mr. Sinister in Marvel Comics Characters Universe
Steve Valentine
as Mr Sinister in Random Superhero Casting
Steve Valentine
as Nathaniel Essex in MCU X-Men
Steve Valentine
as Nathaniel Essex in Ultimate X-Men: Rise of the New Mutants
Steve Valentine
as Nathaniel Essex in Marvel's Wolverine
Steve Valentine
as Mr Sinister in X-Men MCU Reboot
Steve Valentine
as Mister Sinister in Mister Sinister
Steve Valentine
as Nathaniel Essex in X-Men
Steve Valentine
as Nathaniel Essex in Marvel’s X-Men
Steve Valentine
as Mr Sinister in The X-Men (MCU)
Steve Valentine
as Nathaniel Essex in Marvel vs. DC warz
Steve Valentine
as Nathaniel Essex in X-Men and Fantastic Four MCU
Steve Valentine
as Mr. Sinister in Marvel roles yet to be cast next phase