Gotham Season 2 Episode 13: A Dead Man Feels No Cold
Nora Fries along with Mister Freeze’s origin was not introduced until 1992 in the Batman: The Animated Series episode Heart of Ice. Paul Dini and Bruce Timm are credited with creating her. She was first introduced into DC Comics continuity in Batman: Mr. Freeze (1997). Much like the show, she is dying of a terminal illness. In both the animated series and comics she is cryonically frozen as Mr. Freeze works to find a cure and a way to revive her. At one point in the comics, she was revived using the Lazarus Pit belonging to Ra’s Al Ghul. She became Lazara. Fries ended up freezing her. In the New 52, her name is Nora Fields and she has been frozen since 1943. Victor Fries becomes obsessed with her. In that version Fries has a psychotic break and believes he is married to Nora.
In this episode of Gotham, they say Matches Malone killed the Waynes. In the comics and other media that notoriety belongs to Joe Chill. The killer of the Waynes first appeared unnamed in Detective Comics #33 (November 1939), he was named in Batman #47 (June–July 1948). Bob Kane and Bill Finger are credited with creating him. He is in most versions is just a petty mugger and the Waynes were a target of opportunity.
DC’s Legends of Tomorrow Season 1 Episode 8: Night of the Hawk
Curtis Knox, MD is the name of an immortal doctor who appeared in Smallville. They wanted the character to be Savage, but that did not happen. The character was portrayed by Dean Cain, Superman/Clark Kent from Lois & Clark: The New Adventures of Superman (1993-1997). Using this name as an alias for Vandal Savage is a callback to that episode.