who plays the wife in boston marathon movie
âSupergirlâs Melissa Benoist, 2 Others Join Boston Marathon Bombing Film âPatriots Dayâ. EXCLUSIVE: Supergirl star Melissa Benoist has joined the cast of Patriots Day, the CBS Films and Lionsgate pic about the events surrounding the Boston Marathon bombing. Sheâll play Katherine Russell, the wife of bomber Tamerlan Tsaraev.