Previous Post And who is the girl that was taking the drink with Jim? when they show her customer I think she might be a legionnaire but I am not sure. Does anyone knows who she is?

She's Sensor Girl, the former Princess Projectra. The recently deceased husband she refers to is Karate Kid who died in Countdown.

The revelation of her ID makes better sense of her earlier comment about Mon-El not being dead - as a future teammate she obviously knows what will happen to him here.