Katrina made a short appearance in the 14th episode of Legends of Tomorrow. I have added high-quality stills and high-resolution screencaps into the gallery.
Television Projects > Legends of Tomorrow (2016-) > 1×14 River of Time – Stills
Television Projects > Legends of Tomorrow (2016-) > 1×14 River of Time – Screencaps
Television Projects > Legends of Tomorrow (2016-) > 1×14 River of Time – Screencaps