Felicity Megan Smoak is the daughter of Noah Kuttler and Donna Smoak, the wife of Oliver Queen, and the step-mother of William Clayton. Technologically gifted, especially in the field of computer science, Felicity is a former member of Team Arrow, the former CEO of Palmer Technologies, and the co-founder and CEO of Helix Dynamics.
Felicity met Oliver while working in the IT department at Queen Consolidated, when he asked her for many favors related to his vigilante activities. She discovered his secret and despite some initial reservations joined his team, coining the name "Team Arrow", and after many adventures, the two fell in love. Following the defeat of Ra's al Ghul, Felicity and Oliver left Star City to begin a new life together, but after five months returned to rejoin Team Arrow and face the threat of Damien Darhk and H.I.V.E. Felicity was injured in an attack by H.I.V.E. agents and was paraplegic. However, due to an implantable bio-stimulant created by Curtis Holt, she was soon able to walk again. She continued to work with Team Arrow, using the code-name Overwatch, until she and Oliver broke up.
She was later present when her teammate and close friend Laurel Lance, known as the vigilante Black Canary, died after a confrontation with Darhk. After Laurel's death, she resumed her activities as a member of Team Arrow, and eventually helped Oliver recruit a new team of vigilantes. After the explosions on Lian Yu, Felicity returned to Star City and decided to partner with Curtis to start a new company, Helix Dynamics. She also helped Oliver out when his son, William Clayton, came to live with him by becoming William's tutor and, eventually, his step-mom. Even when the rest of Team Arrow started falling apart with each member of the team leaving, Felicity continued to stand by Oliver's side.