Spider-Man and Kid Eternity

 With major The returns of both Gwen Stacy and Jor-El in recent years (or at least alternate versions of them), Ben Parker seems like one of the last comic characters that has been allowed to remain deceased.  It makes sense, as the inspiration his death provided to Spider-Man is the central cornerstone for that hero.  Of course, that mentorship role was taken over by Tony Stark in the Marvel movies, with barely a mention of Uncle Ben.  The poor guy just can't get a break.