'The Flash' Dropped a 'Frozen' Easter Egg in 'Killer Frost'
We can argue all day about which entered the public consciousness first, but if The Flash brought in a white-haired woman unable to control her ice powers, you can bet Frozen references were incoming. Kevin Smith did the honors with this week’s “Killer Frost,” as a subtle background clue urged Caitlin to let it go. Let it goooooo …