Thea Queen

Thea Dearden Queen, also known as Speedy, is a fictional character portrayed by Willa Holland on The CW television series Arrow, created by Greg Berlanti, Marc Guggenheim, and Andrew Kreisberg. She is the maternal half-sister of series protagonist Oliver Queen / Green Arrow. Although an original creation to the series, she adopts elements from the DC Comics superhero Mia Dearden / Speedy, created by writer Kevin Smith and artist Phil Hester. Holland was a main cast member on Arrow from its first season until its sixth, and also crossed over to the spin-off Arrowverse series The Flash. Although Thea Queen is loosely inspired by the existing comics character Mia Dearden, a sidekick of Green Arrow, the idea of Green Arrow working alongside his archer half-sister was later incorporated back into the comics in the form of Emiko Queen.