Jack Russell inherited the werewolf curse and became the WEREWOLF by NIGHT. Marvel played him both as a hero and a villain! he fought with and alongside many of MARVEL's stable of Characters! Werewolf by Night (birth name Jacob Russoff, legal name Jack Russell)was born in Mediaş, Transylvania. Which made him Romanian!
Jack spent the next few years as a traveler, transforming on the three nights of the full moon into savage werewolf form! It is reported that lycanthropy (becoming a werewolf) is in the Russoff line and stretches back many centuries, the first confirmed manifestation in his lineage is Grigori Russoff in 1795. NEXT UP, as I promissed: the fight between him and GHOST RIDER!