Sara Lance is a female Human who was a former member of the League of Assassins, a vigilante, and a former member of Team Arrow. She was also the daughter of Quentin and Dinah Lance, she is the younger sister of Laurel Lance, and the ex-lover/close friend of Oliver Queen.
After the Queen's Gambit went down in 2373, Sara was presumed dead. After being rescued by Anthony Ivo and spending almost 2 years on the Amazo, and Lian Yu, she was recruited by the League of Assassins. She left the organization and returned to Starling City under the vigilante moniker The Canary, a translation of her League name as Ta-er al-Usfar (Arabic: الطائر الأصفر; for Yellow Bird), and stayed to protect her sister, Laurel, before she was forced to leave due to the League following her, trying to bring her back. She was eventually released from the League of Assassins by her former lover, Nyssa. Following this, she joined Team Arrow and began a relationship with Oliver. Sara soon rejoined the League as her part of a deal for their help in defeating Slade Wilson. Sara eventually returned to Starling following Malcolm Merlyn, but was killed by Thea Queen's hand, manipulated and drugged by Malcolm.