Dinah Drake

Dinah Drake, known undercover as Tina Boland, is a meta-human vigilante, former police detective of the Central City Police Department and the newest member of Team Arrow.

Biography
In 2013, Dinah was an undercover cop going by the name Tina Boland in order to go after Sean Sonus. Sonus discover Tina was undercover and he tortured her for 2 weeks. Sonus captured her partner Vincent Sobel and killed him. When the S.T.A.R. Labs particle accelerator exploded which give both Sonus and Dinah their powers. In her grief over Vincent's death she used a sonic scream, attacking Sonus.

She handed in her badge after her partner's funeral and went rogue becoming a vigilante all across America never settling down her roots. Although she always kept track of Sonus's movement. In late 2016 to early 2017 knowing he was in Hub City she indirectly got the attention of Team Arrow when Curtis showed them video footage of her fighting and using her sonic scream against the bad guys. Argeeing that she was perfect to be the next Canary. Curtis, Rene along with Oliver went to recruit her.

Powers

 * Meta-human physiology: After Dinah was struck by the energy of the S.T.A.R. Labs particle accelerator explosion, her DNA and physiology was altered to access powerful sonic screams from her vocal cords.
 * Sonic scream: Dinah is able to emit a high frequency scream, that comes from her voice, able to easily launch a full-grown man several feet, and is powerful enough to kill a man at close range.

Behind the scenes

 * In the DC comics, Dinah Drake (later known as Dinah Drake-Lance) is the first person to take on the legacy mantle of Black Canary and is also the mother of her successor, Dinah Laurel Lance. In the New 52 reboot, Dinah Lance (née Drake) is the only Black Canary ever existed on Prime Earth, with the two previous versions being combined into one.
 * On the show, the character is split into two altogether separate individuals; Dinah Drake, the meta-human Black Canary-in-training and Dinah Lance, the civilian mother of Laurel Lance, the first Black Canary.
 * She's possibly related to Dinah as Drake was her maiden name making Laurel and Sara her cousins.