Which ADA was played by Stephanie March on SVU?

Stephanie March played Assistant District Attorney Alexandra Cabot on Law & Order: Special Victims Unit. Cabot became the show's first permanent, full-time ADA assigned to work with the SVU detectives.

Alexandra Cabot first appeared in the season-two premiere, "Wrong Is Right." Unlike the detectives, she worked for the Manhattan District Attorney's Office, handling courtroom strategy, warrants, plea negotiations, and prosecutions arising from the squad's investigations. Her compassion for victims was balanced by a demanding and sometimes controversial approach to winning convictions.

Cabot's storyline became especially dramatic in season five, when she was targeted by a drug cartel's assassin. The character was presumed dead and entered the Witness Protection Program, allowing March to leave the regular cast. Cabot later returned several times, including a major return in seasons 10 and 11 and later guest appearances. The other options are different SVU prosecutors: Casey Novak was played by Diane Neal, Rafael Barba by Raúl Esparza, and Peter Stone by Philip Winchester.