The Flash series finale will feature the return of Tom Cavanagh's Reverse Flash, as the season 1 version of Eobard Thawne will appear in the last episode. The Arrowverse's longest-running series is approaching its end as The Flash season 9 is executing its final storyline. The CW drama is right now in the midst of its four-part series finale, "A New World," which will challenge Barry Allen's legacy one last time. Similar to other shows that hit their final seasons, The Flash is not holding back when it comes to bringing back fan favorites.

While he died in The Flash season 8, Barry's story wouldn't be what it is without the Reverse Flash, and the series finale is looking to honor that. Entertainment Weekly confirmed that Cavanagh is officially set to reprise the role of the speedster villain in the final episode, "A New World, Part Four," which airs on Wednesday, May 24. According to showrunner Eric Wallace, this will be The Flash season 1 version of Eobard, as he shared the following on Cavanagh's final return:

This is Barry Allen's final race, so you can't tell that story without including his most infamous adversary: The Reverse-Flash. Having brilliantly played the character since season 1, bringing Tom back as our show concludes its run was always part of the plan. Tom's exciting portrayal of Eobard Thawne has been unforgettable for nine years, and fans will be delighted to know that he's brought that same wonderful intensity to our finale, too.

RELATED: The Flash Season 9 Completes Barry Allen's Victory Over Reverse-Flash

Who Else Is Returning For The Flash Series Finale?

Zoom, The Flash, and Reverse-Flash custom image

As much fun as Cavanagh's Reverse-Flash return will be, The Flash series finale has a lot of guests lined up. On the hero front, Jessica Parker Kennedy is returning as Nora West-Allen, a.k.a. XS, whose timing is perfect given Iris' pregnancy storyline. John Wesley Shipp, who recently appeared as Henry Allen in last week's episode, will return as Jay Garrick, who was last seen in the Stargirl series finale back in 2022.

Reverse-Flash is only one of the great villains that The Flash will be facing in the series finale. Before set photos came out, it had already been announced that Teddy Sears' Zoom was coming back for the Flash series finale. During the production of episode 13, Zoom was spotted together with Reverse-Flash, Savitar, and Godspeed. The four speedster antagonists were together with Rick Cosnett's new character, who is seemingly meant to be Cobalt Blue based on his costume and the events of episode 10.

As bittersweet as it is to see The Flash coming to an end, it can't be denied that the series finale is going all in for what is looking to be a major ending to the DC TV series. Having all these iconic villains against the Scarlet Speedster at the same time is probably something that took a lot to arrange in terms of scheduling and budgets. Hopefully, it will live up to everyone's expectations when The Flash series finale airs in a few weeks.

Source: EW