Mia Dearden is a DC Comics superheroine, the second character to take the mantle of Green Arrow's sidekick Speedy.

A loose adaptation, Thea Queen, appeared on the Arrowverse television series Arrow, portrayed by Willa Holland.

Unable to survive on her own, she fell in love with a man who offered her shelter and food in exchange for exploiting her in his child prostitution ring.

Mia was rescued from one of her clients, a depraved local politician, by the costumed hero Green Arrow, who had just returned from the dead and to Star City.

Mia continued to work with Oliver, who was busy trying to reconstruct his own life, and after coming upon her crossbow, Ollie began to train her as an archer.

Mia continually petitioned Green Arrow to allow her to serve as his sidekick, but Oliver demurred, not wanting to put another teenager at risk.

Mia appeared in Green Arrow as a supporting character until 2004, when writer Judd Winick revealed that she was HIV-positive, a legacy of her exploitation.

Mia was tempted to use the arrow in her first mission against Dr. Light; against a possessed Superboy, Indigo, Lex Luthor, and Brainiac; and again when they faced off against the demon servants of Brother Blood.

After the events of Infinite Crisis, Mia recuperated from injuries on an island with Green Arrow and Connor, returning approximately a year later.

During the Blackest Night storyline, Mia briefly travels to Coast City with Connor in order to fight off the Black Lantern invasion.

In the Rise and Fall storyline, Mia helps out Green Arrow after the Justice League attempts to capture him for killing Prometheus.

[8] Following Electrocutioner's arrest, Mia attends Lian's funeral alongside a number of prominent heroes, including her former teammates from the Teen Titans.

[9] Alongside Damian Wayne and a group of other ex-Titans, Mia aids the then-current team of Teen Titans during their battle against Superboy-Prime and the Legion of Doom.

Unlike Connor Hawke, who relies on simple wooden shafts, like Oliver, Mia employs trick arrows.

Although Mia is a skilled street fighter, Connor Hawke and Black Canary also taught her many forms of martial arts such as Krav Maga, Kenjustu and self-defense prior to taking up the mantle of "Speedy".