Mirror Master is the name of several supervillains appearing in American comic books published by DC Comics. He is a recurring foe of the Flash with considerable technical expertise and skills involving the use of mirrors. Three individuals have donned the guise of Mirror Master, and have been members of the Rogues. In 2009, Mirror Master was ranked as IGN's 79th Greatest Comic Book Villain of All Time.

Icicle is the name of two supervillains appearing in comic books published by DC Comics: Joar Mahkent and Cameron Mahkent.