Abraham Whistler is a fictional character appearing in media based on Marvel Comics. A vampire hunter and the mentor of Blade, created by David S. Goyer for the 1998 film Blade, named after Abraham van Helsing, the nemesis of Count Dracula from Bram Stoker's Dracula (1897), Whistler first appeared in Spider-Man: The Animated Series in 1995, adapted from Goyer's then-unfilmed screenplay, where he was originally voiced by Malcolm McDowell and later by Oliver Muirhead. Whistler then made his live-action debut in Blade, portrayed by Kris Kristofferson, who reprised the role in Blade II (2002) and Blade: Trinity (2004). A young Whistler returned in Blade: The Series in 2006, portrayed by Adrian Glynn McMorran, and in Rick and Morty in 2023, voiced again by Kristofferson.
While receiving a positive critical reception, Whistler's character was retrospectively criticized as whitewashing, in replacing the role of Blade's black mentor Jamal Afari from the original Marvel Comics.