# Thea Queen
**Thea Dearden Queen** is a fictional character in [The CW](https://www.edgepedia.org/the-cw) television series *[Arrow](https://www.edgepedia.org/arrow-tv-series)* (2012–2020), portrayed by [Willa Holland](https://www.edgepedia.org/willa-holland). She is the younger maternal half-sister of Oliver Queen, the show's protagonist, and later becomes a vigilante in her own right under the name **Speedy**.[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse))
| Key fact | Detail |
|---|---|
| Full name | Thea Dearden Queen; also known as "Mia" and Speedy[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse)) |
| First appearance | *Arrow* episode "Pilot" (2012), created by Andrew Kreisberg and Marc Guggenheim[2](https://dc.fandom.com/wiki/Thea_Queen) |
| Family | Daughter of Malcolm Merlyn and Moira Queen; maternal half-sister of Oliver Queen; Robert Queen knew the truth but raised her as his own[3](https://arrow.fandom.com/wiki/Thea_Queen) |
| Vigilante identity | Speedy, joining Team Arrow after Roy Harper left her his Arsenal suit[3](https://arrow.fandom.com/wiki/Thea_Queen) |
| In-universe birthday | 1995, per a tweet by executive producer Andrew Kreisberg[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse)) |
| Comic basis | Freely adapted from Mia Dearden/Speedy, created by Kevin Smith and Phil Hester in *Green Arrow* (Volume 3) #2[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse)) |
## Origin and comic connections
Thea Queen was invented for the show rather than taken from the page. The DC Database records her as an original [Arrowverse](https://www.edgepedia.org/arrowverse) creation by Andrew Kreisberg and Marc Guggenheim, first appearing in the 2012 pilot episode, that adapts elements of Mia Dearden.[2](https://dc.fandom.com/wiki/Thea_Queen) Commentary on the adaptation describes her as essentially a mash-up of the comic characters [Roy Harper](https://www.edgepedia.org/roy-harper-character) and Mia Dearden: in the comics Roy Harper was Oliver's ward, a relationship the show converted into siblinghood since Oliver is younger on television and his mother is still alive.[4](https://movies.stackexchange.com/questions/68869/why-is-thea-queen-nicknamed-speedy-instead-of-roy-harper)
The character's name encodes her comic lineage. Her middle name, Dearden, and her alias "Mia", used in [Corto Maltese](https://www.edgepedia.org/corto-maltese), both reference Mia Dearden, the second Speedy after Roy Harper.[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse)) The nickname Speedy itself was given to Thea in childhood as a nod to [Green Arrow](https://www.edgepedia.org/green-arrow)'s comic sidekicks.[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse)) When she finally took up a vigilante identity, she suggested "Red Arrow", one of Roy Harper's comic aliases, before Oliver prompted her to take the name Speedy instead.[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse))
The influence ran in both directions.
## Character arc on Arrow
**Early seasons.** In the series premise, Oliver Queen returns to Starling City after five years presumed dead following a shipwreck, and Thea is introduced as his sister in the family circle around Moira Queen and Walter Steele.[5](https://www.dc.com/tv/arrow-2012-2020) Early in the run she was running a bar before she was old enough to drink.[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse)) During season 2 the show revealed that her biological father is Malcolm Merlyn, not Robert Queen, and Moira had kept that parentage secret; co-creator Marc Guggenheim said the writers were reluctant to hand Moira yet another secret going into season 3.[6](https://time.com/99120/arrow-co-creator-marc-guggenheim-on-tonights-season-2-finale/) At the end of season 2 Thea left town riding off with Malcolm, her biological father, and actress Willa Holland signaled a changed character on her return: "The Thea that you guys saw in Season 1 and Season 2 is not the girl coming back in Season 3."[7](https://time.com/3045784/everything-you-need-to-know-about-the-third-season-of-arrow/)
**Speedy.** Season 3 transformed her. After five months of training with Malcolm, Thea became a capable fighter, and an international trailer for the episode "Al Sah-him" (original airdate April 29, 2015) spoiled that she was finally joining Team Arrow as Oliver's Speedy sidekick, filling the vacancy left when Roy Harper's Arsenal departed.[8](https://comicbook.com/comicbook/news/arrow-international-trailer-reveals-a-spoiler/) In the story, Roy ended their relationship and left her his Arsenal suit, and she accepted it, inspired to assume her own mantle and operate as a vigilante under the name Speedy.[3](https://arrow.fandom.com/wiki/Thea_Queen)
**The Lazarus Pit and bloodlust.** Thea was stabbed and fatally wounded by [Ra's al Ghul](https://www.edgepedia.org/ras-al-ghul) and resurrected in the Lazarus Pit, which brought her back stronger than a normal human but left a thirst for violence known as bloodlust; after about six months as a vigilante the pit's side effects made her aggressive, unstable, and unpredictable.[3](https://arrow.fandom.com/wiki/Thea_Queen) While brainwashed by Malcolm, she killed [Sara Lance](https://www.edgepedia.org/sara-lance), making her technically the first character to kill a member of Team Arrow, current or former.[3](https://arrow.fandom.com/wiki/Thea_Queen) Her recorded abilities from this period include eskrima, stick fighting, swordsmanship, and a familiarity with poisons, shown when she detected disguised cyanide in red wine.[1](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse))
**Later seasons and exit.** After the emotional fourth season, marked by tragedy, bloodlust, and questionable decisions, Thea took a break from Team Arrow.[9](https://fangirlish.com/2016/08/01/arrow-sdcc-2016-interview-willa-holland/) In season 5 she served in Oliver's mayoral office, effectively running the city during his absences, and commentators marked the distance she had traveled from the party girl of season 1 to a composed woman in government.[10](https://www.itsjustaboutwrite.com/2016/11/arrow-5x07-review-vigilante-moral.html) Holland appeared in her final episode as a series regular in season 6, with Thea leaving Star City to go out into the world and right some of the wrongs wrought by her biological father, Malcolm Merlyn; showrunner Marc Guggenheim emphasized how important Thea's relationship with Oliver had been to the show.[11](https://comicbook.com/dc/news/arrow-guggenheim-thea-willa-holland-quit/)
## Other versions and reception
The Arrowverse multiverse produced variants of the character, including an Earth-2 Thea Queen, a resident of Starling City who lived from April 18, 1994 to April 18, 2012 and died on her eighteenth birthday.[12](https://arrow.fandom.com/wiki/Thea_Queen_(Earth-2)) Thea also appears in the *Arrow* digital tie-in comics.[13](https://comicvine.gamespot.com/queen-family/4060-60534/)
Among viewers, Thea's development is frequently cited as one of the show's strongest arcs, tracing her from an immature teenager to a nightclub owner, vigilante, and public servant.[10](https://www.itsjustaboutwrite.com/2016/11/arrow-5x07-review-vigilante-moral.html) Holland prepared for the role's physical demands with daily gym work, and by season 3 reported training about 20 hours a week to make Thea more of a fighter.[14](https://comicbook.com/comicbook/news/arrows-willa-holland-talks-theas-dark-season-three-path/)
## References
1. [Thea Queen (Arrowverse), DC Database](https://dc.fandom.com/wiki/Thea_Queen_(Arrowverse))
2. [Thea Queen (disambiguation), DC Database](https://dc.fandom.com/wiki/Thea_Queen)
3. [Thea Queen, Arrowverse Wiki](https://arrow.fandom.com/wiki/Thea_Queen)
4. [Why is Thea Queen nicknamed "Speedy" instead of Roy Harper?, Movies & TV Stack Exchange](https://movies.stackexchange.com/questions/68869/why-is-thea-queen-nicknamed-speedy-instead-of-roy-harper)
5. [Arrow (2012–2020), DC.com](https://www.dc.com/tv/arrow-2012-2020)
6. [Arrow Co-Creator Marc Guggenheim on Tonight's Season 2 Finale, Time](https://time.com/99120/arrow-co-creator-marc-guggenheim-on-tonights-season-2-finale/)
7. [Everything You Need to Know About the Third Season of Arrow, Time](https://time.com/3045784/everything-you-need-to-know-about-the-third-season-of-arrow/)
8. [Arrow International Trailer Reveals A Spoiler, ComicBook.com](https://comicbook.com/comicbook/news/arrow-international-trailer-reveals-a-spoiler/)
9. [Arrow SDCC 2016 Interview: Willa Holland, Fangirlish](https://fangirlish.com/2016/08/01/arrow-sdcc-2016-interview-willa-holland/)
10. [Arrow 5x07 Review: "Vigilante", Just About Write](https://www.itsjustaboutwrite.com/2016/11/arrow-5x07-review-vigilante-moral.html)
11. ['Arrow' Showrunner on Willa Holland's Exit, ComicBook.com](https://comicbook.com/dc/news/arrow-guggenheim-thea-willa-holland-quit/)
12. [Thea Queen (Earth-2), Arrowverse Wiki](https://arrow.fandom.com/wiki/Thea_Queen_(Earth-2))
13. [Queen Family, Comic Vine](https://comicvine.gamespot.com/queen-family/4060-60534/)
14. [Arrow's Willa Holland Talks Thea's Dark Season Three Path, ComicBook.com](https://comicbook.com/comicbook/news/arrows-willa-holland-talks-theas-dark-season-three-path/)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Series and fictional screen worlds › Scripted television and comedy series › Adapted and franchise screen series › Comic-book and superhero television series › DC television series*
*Initially written Sep 17, 2026 · Reviewed: Sep 19, 2026; Sep 30, 2026; Oct 25, 2026 · Edited: Sep 19, 2026; Oct 12, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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