Question: who plays mxyzptlk on supergirl?
Answer: Thomas Lennon (The State) is set to recur as the mercurial trickster in the fifth season of the CW's Supergirl. Mxyzptlk, aka “Mxy,” is the impish, reality-bending trickster from the 5th Dimension, who previously visited National City to woo Kara Danvers, aka Supergirl, but created chaos in the process.