Mon Mothma will play a pivotal role in Rogue One: A Star Wars Story, and Lucasfilm president Kathleen Kennedy has come forward to shed light on what's in store for Genevieve O'Reilly's character in the upcoming film. According to EW, Mothma will play a major role in aiding in the destruction of the first Death Star, tasking Jyn Erso (Felicity Jones) and Capt.