Buffy The Vampire Slayer, James Marsters

In season four of the show, feared vampire Spike (James Marsters) joins Buffy’s gang after he’s fitted with a cerebral microchip that stops him from harming humans. He later falls in love with Buffy ...
Given that Spike had already returned from the dead once before—after Buffy the Vampire Slayer’s series finale—it’s possible the show could write off his survival in a similar manner.