Pre expanded universe mash up, but Check out the 1958 Hammer version of “Dracula” to see Cushing as Van Hellsing and Lee as Dracula. Or check out the Hammer film “The Curse of Frankenstein” to see Cushing as Dr. Frankenstein and Lee as Frankenstein’s monster. OR check out the Hammer film “Frankenstein and the Monster from Hell” to see Cushing as Dr. Frankenstein and David Prowse (aka Darth Vader) as Frankenstein’s monster.
They appeared together in many films, mostly by Hammer.