James Olsen's transformation into Guardian has been better than pretty much everyone expected, but one person in Supergirl who isn't a fan of vigilantes is Kara Danvers. During last night's episode of The CW series, the hero made that clear when she mentioned that Superman had also worked with a costumed crimefighter, and well, I guess we now know that Batman is definitely part of this world!
"My cousin worked with a vigilante once," the Girl of Steel says. "Tons of gadgets, lots of demons. Vigilantes are nuts!" He's not mentioned by name, but that has to be Batman, especially as a previous episode has confirmed that Gotham exists on Supergirl's Earth. Will we ever get to see a small screen version of the Dark Knight? Honestly, it's hard to say, but we never expected to get Superman!
Time will tell, but for now, share your thoughts on this reference in the comments section below.