According to the character's description, she "has the power to make people's heads spin... she's the Bonnie to Mirror Master's Clyde and one of the most dangerous members of the gallery of Rogues."
"It's kind of the origin of Mirror Master...We're really excited," explained executive producer Aaron Helbing. Todd Helbing, his brother and fellow executive producer, added, "It's the origin story of him, but it's this struggle between Mirror Master and Captain Cold and you get to see who comes out on top."
In the comics, the Top is a male character; originally Roscoe Dillon, the Top was created by John Broome and Carmine Infantino and first appeared in "The Flash" #122. He is able to spin at high speeds, earning him his name, but he also possesses telekinetic and telepathic powers. In some iterations, he has been able to cause others to experience vertigo. Like Captain Boomerang's boomerangs, he also employs specialized tops as weapons.
Last week, CBR learned exclusively that Grey Damon had been cast as Mirror Master. It seems Rickards' Top will join him for a life of crime in Season 3. They will appear together in the fourth episode of the season, which will serve as Mirror Master's origin story.