Trivia: Elizabeth Tulloch, who plays Lois Lane, is married to David Giuntoli, with whom she starred on Grimm, and who had auditioned to play Clark/Superman in Man of Steel.
Trivia: Sherloque develops a crush on Renee Adler, a clear play on "Irene Adler" from other Sherlock Holmes media. Although only appearing in one book, in TV shows/movies Irene is frequently a love interest of Holmes.
Trivia: When Barry is suffering amnesia he asks to be named Bart, Bart Allen in the comics is grandson of Barry and the future Flash.
Crisis on Earth-X, Part 3 - S4-E8
Trivia: The outfit wore by Snart is the classic costume including the visor from the comics and the cartoon TV show.
Finish Line - S3-E23
Trivia: In ARGUS one of the prisoners is Cheetah, she is an enemy of Wonder Woman.
Finish Line - S3-E23
Trivia: Cisco refers to Savitar as being like Two Face, another DC super villain.
Trivia: Wally says he's going to move to Blue Valley. In the comics, Blue Valley is where Wally West (son of Rudy and Mary West) was from.
Trivia: The way the other Flash dies and vanishes is exactly how Flash did in the "Crisis on Infinite Earths" DC comic book.
Trivia: The cellar where Wells was caught belongs to ACE chemical, a regular feature of DC comic book characters.
Running to Stand Still - S2-E9
Trivia: The drawings that the trickster has in his cell show the original image of the Flash in the comics.
Trivia: The woman that knows Oliver is Sandra Hawke, mother of Connor Hawke, the second Green Arrow.
The Man in the Yellow Suit - S1-E9
Trivia: Amanda Pays plays Dr. Tina McGee, head of Mercury Labs, a rival to S.T.A.R. Labs. She also played Tina McGee in the 1990 TV show The Flash, however in that series she's the one who helped Barry and built his special suit.
Trivia: John Wesley Shipp, who plays Henry Allen (Barry Allen's father), played Barry Allen in the 1990 TV show The Flash.
Fast Enough - S1-E23
Trivia: While Barry is running through the wormhole we can see Caitlin as Killer Frost, the Flash museum and the Legends of Tomorrow.
Fast Enough - S1-E23
Trivia: The metal hat that comes out from the wormhole belongs to Jay Garrick, aka the original comic book Flash.
