Mia Smoak is a fictional cage fighter and a supporting character featured on the CW Network television series Arrow. Played by actress Katherine McNamara, she first appeared in the season seven episode, "Unmasked".
Mia Smoak was born in late 2019. She was the daughter of Oliver Queen and Felicity Smoak. She was Oliver's second child, but his first with Felicity. She was Felicity's first child. She had an older half-brother named William Clayton. She was raised to defend herself and was trained in martial arts by Nyssa al Ghul.
By the year 2040, Mia Smoak lived outside The Glades, and worked as a cage fighter. Her mother had long since disappeared by this point, and many believed her to be dead. She met up with her half-brother for the first time, and together they (reluctantly) worked together to find Felicity.