This article contains spoilers for The Flash’s 100th episode, “What’s Past is Prologue.”
The Flash’s 100th episode dropped a pretty huge bombshell on viewers, revealing that Nora West-Allen has had a secret benefactor all throughout her trip to the past. And not just any benefactor, but the one and only Eobard Thawne. Apparently, this is one Arrowverse villain who just doesn’t know when to call it quits.
Flash fans may be rightfully wondering how Thawne can still be alive in the future after we’ve seen him die on more than one occasion. The short answer is because time travel. The long answer? Well, that’s a bit more complicated.