Jack Russell also known as the Werewolf By Night made his comic book debut in Marvel Spotlight #2 (February 1972)
Werewolf by Night was created by Gerry Conway, Roy Thomas, and Mike Ploog.
The character Moon Knight made his comic debut in the pages of Werewolf by Night #32.
Werewolf By Night is a member of the Legion of Monsters as well as the Midnight Sons and Night Shift.
There is speculation that Jack Russell and his hairy alter ego will either be featured on the Moon Knight T.V. show on Disney Plus or in the MCU movies…possibly Doctor Strange and the Multiverse of Madness.
Beware the full moon and if you hear a howl late at night, lock your door and turn off the lights.