DC's Legends of Tomorrow type TV Show network The CW genre Superhero

Warning: This story contains major spoilers from Tuesday’s episode of DC’s Legends of Tomorrow. Read at your own risk!

Felicity finally suited up as a superhero during Tuesday’s alt-reality episode of DC’s Legends of Tomorrow. And just as quickly, she also died.

In Doomworld, Sara (Caity Lotz) and Amaya (Maisie Richardson-Sellers) were forced to be Damien Darhk’s (Neal McDonough) henchmen. Hence, the hour opened with the duo hunting down a hooded hero viewers had never seen before, leading to the reveal that Felicity (Emily Bett Rickards) is a superhero in this reality — but also leading to her swift death.

“People are going to be pissed,” Lotz told EW during the filming of “Doomworld.” “I was like, ‘Uh-oh, fans are going to be mad at me.’ When I read it, I was like, ‘Oh, that’s harsh, really harsh.’ Hopefully people won’t be too mad because it’s not really Sara, it’s someone else. So everybody calm down. She’s still alive. Everything’s fine.”

True, Felicity is still very much alive in the world of Arrow. But how did she come to be a suited superhero in this reality? “One of the things that we — when we start breaking an episode — try to figure out is what we call the cold open,” executive producer Marc Guggenheim explains. “What’s the opening scene, what’s the thing that takes you to the title card? We’d worked out that Sara and Amaya were working basically as Darhk’s henchmen, and the writing staff had a pitch that they would be chasing a superhero, bringing them to Darhk and killing the superhero.”

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“We all recognized, ‘Well, who are we going to use from our Arrowverse?'” Guggenheim continues. “It’s always nice when you can pull in a character from one of the other shows. We talked about a lot of different ideas, and I said, ‘Since this is an alternate reality and we’ll probably never have the opportunity to do so again, I think it would be fun if we did Felicity as a superhero,’ because I’ve said it before, I’ll say it again: I have zero intention of ever putting Felicity in a mask and costume on Arrow. So this is really the only circumstance by which we could do it.”

Though her superhero name wasn’t used in the episode, or even scripted for that matter, Guggenheim notes that it would probably be Overwatch as a nod to her codename on Arrow. Alas, she’s really not on screen long enough for that to matter. “Yes, it just so happens that she’s killed,” Guggenheim says. “There’s no statement behind it, there’s no meta commentary, it really was the scene existed first and the idea to have that scene be Felicity as a superhero came second. Once we made it Felicity, I didn’t want to then change what our original intent was, which was to kill the superhero. So that’s how it all came together. But I hope people enjoy it in the spirit in which it was intended.”

For her part, Richardson-Sellers notes that Felicity was far from the only hero that the duo had killed. “You can infer from the masks that we’ve collected that we’ve already killed Arrow and killed Flash,” says the actress, who lauded Felicity’s cameo in the alt-reality hour. “I was surprised. It’s fantastic. I love the crossovers. It’s really fun for the fans as well to see the worlds crossover, though this is a different reality.”

Despite this version of Felicity meeting her maker, is there a chance we could ever see her again? It’s not likely. “There’s two lines in the sand that I’ve drawn for Arrow for myself,” Guggenheim says. “I can’t speak for Greg [Berlanti] or for Wendy [Mericle], but for as long as I’m involved with the show, the two things I never want to do is kill off Thea [Willa Holland] and put Felicity in a mask and a costume. Those, to me, are two lines that I just think are a bridge too far. Thea, because we’ve taken so many family members away from Oliver, and Felicity because when you put a character like that in a costume, I think it diminishes who that character is and it makes the idea of superheroics seem silly.”

DC’s Legends of Tomorrow airs Tuesdays at 9 p.m. ET on The CW.