Boleslav William Felix Robert Sienkiewicz is an American artist known for his work in comic books—particularly for Marvel Comics' New Mutants, Moon Knight, and Elektra: Assassin. He is the co-creator of the character David Haller / Legion, the basis for the FX television series Legion.
Bill Sienkiewicz speaking at the 2024 WonderCon
Sienkiewicz, during a 1997 appearance in Gijón, Spain
Sienkiewicz's front and back covers for Stray Toasters #3
Moon Knight is a character appearing in American comic books published by Marvel Comics. Created by writer Doug Moench and artist Don Perlin, the character first appeared in Werewolf by Night #32.
Marc Spector / Moon Knight. Marc Spector: Moon Knight #39. Art by Gary Kwapisz.