The Vampire Diaries is one of the most popular pop culture shows of all time, and among all the characters, Ian Somerhalder's Damon Salvatore is the most adored character despite his grey shades in the series. But the actor once threatened to quit the show if one of his co-stars got killed in it, which almost happened every now and then, and they even sprung back to life equally soon enough. The character of Enzo, played by Michael Malarkey, was introduced in the later seasons of the series and was there till the last one.
For the unversed, Malarkey's Enzo was Damon's cellmate while they were trapped for an experiment during the 1950s.
The executive producer of The Vampire Diaries, Caroline Dries, once recalled how Ian Somerhalder got upset when Michael Malarkey's Enzo was killed off for a brief moment. In an interview with The Hollywood Reporter, Caroline said, "Ian pulled me aside one day, and he goes, 'If you kill Enzo, I'm going to quit,' We purposefully had him show up at the end as a ghost to imply that his story isn't over.
As many don't know, Ian Somerhalder's Damon was initially cast as a bad guy in The Vampire Diaries, per CheatSheet, but his character clicked with the audience and is still one of the iconic characters in the history of TV.