Warning: Major SPOILERS for the Crisis on World-10 crossover

The identity of Earth-Ten'south Prometheus from the Arrowverse'southwardCrunch on Globe-10 crossover has been revealed. Following the moderate success of last year's four part crossover, The CW's Arrowverse is back together once once more starting tonight. Kick off withSupergirl andArrow, the universe'due south biggest crossover event is underway and vastly different than the previous i. This time, all four episodes of each evidence volition largely focus on the crossover and the invasion of Nazi heroes from another Earth.

The inflow of these villains is giving many of the usual leading heroes a run a risk to plough heel and play evil versions of themselves, while Tom Cavanagh has the chance again to suit up every bit Reverse Flash. However, in that location are several other villains for the regular Earth-1 heroes to battle. I of them is Prometheus, merely this time it isn't Josh Segarra'southward Adrian Chase.

Related: Early Prometheus Concept Art Has Comic-Accurate Design

Equally revealed in the middle of tonight's two hour launch of the upshot, Earth-Ten'southward Prometheus is none other than Tommy Merlyn. Longtime viewers ofArrow volition instantly recognize the return Colin Donnell as Oliver Queen's best friend. Even with Tommy coming from a dissimilar Globe, he confirms that human relationship is the same on both Earths.

The return of Tommy Merlyn didn't last very long however, as he activated a hidden cyanide capsule and killed himself in the procedure. The decision came after Team Arrow captured him and serves as a cursory callback to those that accept watched this universe grow from the beginning. It marks Donnell's first appearance on the show since a season 3 flashback scene, which makes this his start "actual" appearance since the end of season 1.

The reveal that Donnell was the one behind Prometheus' mask doesn't only add a overnice reveal for the crossover, only besides leans into previous speculation that he was actually the real Prometheus last season. Thanks to the Arrowverse making a habit of resurrecting people, fans accept been waiting for the day that Tommy is brought back into the fold. At this signal, it seems increasingly unlikely, merely it would have been a large reveal for final season if information technology had wound upwardly being truthful.

With both Earth-1 and Earth-10 Tommy now dead, this could very well exist the terminal advent Donnell makes in the Arrowverse. Thanks to the countless possibilities of the Crisis on Earth-Ten crossover, Donnell may not be the only familiar confront to pop up. There are surely other surprises in store, so stay tuned to Screen Rant and tune in to the crossover itself to see how it all plays out.

Next: Crisis on Globe-X Banner Pits Heroes vs Foes

Crisis on Earth-Ten  continues on Tuesday @8pm withThe Flash andLegends of Tomorrow on The CW.

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