Sinister Interdimensional Bureaucrat (@OfficiallyGMan) / X

Todd Koller (Inactive not 4ever) (@ToddKoller) / X

Iron Studios Mr. Sinister – X-Men – BDS Art Scale 1/10

I know Sinister is one of the worst villains ever, but damn it he's so much fun to read. : r/xmen

Sinister Interdimensional Bureaucrat (@OfficiallyGMan) / X

Martin (Roma) Sinister 🔞 6 666 - kiriban ❗ (@infernotoxin) / X

Daniel Craig Favored To Play Mr. Sinister For X-Men Spinoff Gambit

X-Men: Days of Future Indignation by JohnBizarro on DeviantArt

Sinister Musings

Marvel Comics March 2023 Solicitations Spoilers Sees Sins Of Sinister Event Rage & Transform EVERYONE In Marvel Not Just The X-Men?! – Inside Pulse

Martin (Roma) Sinister 🔞 6 666 - kiriban ❗ (@infernotoxin) / X

Earth-Mr. Sinister Formed the X-Men