SPOILER WARNING: This article contains major spoilers for "The Darkness and the Light", tonight's episode of "The Flash."
"The Darkness and the Light," the latest episode of "The Flash," revealed one speedster's surprising family connection: the woman who becomes Jesse Quick (Violett Beane) is the daughter of none other than Harrison Wells (Tom Cavanagh). In addition to a brief cameo in the opening sequence, the episode's stinger showed her caught in Zoom's clutches, which may be what's motivating Wells to help Barry defeat him.
In the comics, Jesse Quick is a speedster of her own. The name is actually an alias for Jesse Chambers, the Flash's fellow speedster and the daughter of DC Comics heroes Johnny Quick and Liberty Belle. Like her father, she achieves her super speed through the speed formula. In addition to speed, she also has her mother's super strength. It seems that, in the show, she'll have her father's science on her side as well. Whether or not she inherited Wells' technical know-how is yet to be seen, as Jesse only made a brief appearance.
Additionally, the episode saw Barry use one new ability for the first time: Speed Mirage. Reverse Flash was seen using it last season, but Barry hadn't yet reached that level of speed -- until this episode, as Earth-2's Wells postulated. Speedsters can create speed mirage by moving so quickly a mirror image of them appears to the naked eye.
Starring Grant Gustin, Carlos Valdes and Jesse L. Martin, "The Flash" airs Tuesdays at 8 pm EST on The CW.