The CW has found its Lois Lane.

"Grimm" alum Elizabeth Tulloch has landed the role of the intrepid reporter (and love interest of Tyler Hoechlin's Superman) in The CW's annual DC/"Arrow"-verse crossover event.

The three-night event kicks off with "The Flash" on Sunday, December 9, followed by "Arrow" on December 10 and then "Supergirl" on December 11.

The big crossover event will also introduce Batwoman, played by Ruby Rose.

Tulloch starred as the female lead on NBC's supernatural drama "Grimm" for six seasons and recently appeared opposite Tim Roth in this year's "Chronic."

"We couldn’t be more excited to introduce Lois Lane to the Arrowverse. This dogged, determined and brave reporter will make for a strong partner to Superman and amazing addition to our universe of DC characters,” said "Supergirl" executive producers Jessica Queller and Robert Rovner said in a statement last month when the network began its casting search for Lois Lane.