Thea Queen is Oliver Queen's younger sister.
While Oliver was on the island, she developed a rebellious attitude and a drug habit, although she began to become clean after criminal charges are brought against her for driving while under the influence. During this time she met and began a relationship with Roy Harper.
After the collapse of the Glades and Oliver's return to the island, Thea took over Oliver's club. However, her relationship with her family and Roy swiftly began to break down due to Roy experiencing psychological issues after he was dosed with mirakuru- a strength-enhancing drug that also compromised his capacity for rational thought- and Thea learned that Malcolm Merlyn was her biological father and nobody else had told her about this. She was subsequently contacted by the resurrected Malcolm Merlyn, and accepted his offer to accompany him for training.
While training with Malcolm, he drugged Thea so that she would return to Starling and murder Sara Lance on his orders, provoking a chain of events that would force Oliver to fight Ra's al Ghul to protect Malcolm.
- Business Management
- Hand-to-Hand Combat (Advanced): Thea received regimented training from her father Malcolm Merlyn. However, after her coma induced by the destruction of Lian Yu by Prometheus, Thea has lost a little bit of her strength and skill.
- Martial Arts
- Toxicology: Thea has displayed a familiarity with poisons, being able to detect disguised cyanide in red wine
- Drug Addiction (formerly)
- This version of the character is exclusive to the continuity of the television series Arrow and is an adaptation of Mia Dearden. The original character was created by Kevin Smith and Phil Hester and first appeared in Green Arrow (Volume 3) #2.
- Thea Queen is portrayed by Willa Holland.
- Thea was nicknamed Speedy in her childhood. A reference to Green Arrow's comic sidekicks.
- Both Thea's middle name, "Dearden", and her alias in Corto Maletse, "Mia", are references to Mia Dearden, the second Speedy after Roy Harper.
- Thea suggested that her vigilante identity could be "Red Arrow", before being prompted by Oliver to take on the name Speedy. In the comics, Red Arrow was one of Roy Harper's aliases.
- Thea's birthday is January 21, 1995. 
- Thea was running a bar before she was old enough to drink.
- 118 Appearances of Thea Queen (Arrow)
- 6 Images featuring Thea Queen (Arrow)
- 1 Quotations by or about Thea Queen (Arrow)
- Character Gallery: Thea Queen (Arrow)
|Arrow and Flash television series. This template will categorize articles that include it into Category:Arrow (TV Series) Characters.|
|Team Arrow member|
This character is or was a member of the Green Arrow family of vigilante super-heroes, who fight crime using archery and martial arts. They are a loose connection brought together through family bonds and shared experiences. This template will categorize articles that include it into the category "Team Arrow members."