David Ajala (born 21 May 1986) is a British actor. He is known for his roles as Manchester Black in Supergirl (2018–2019), Captain Roy Eris in Nightflyers (2018), and Cleveland "Book" Booker in Star Trek: Discovery (2020–present).
Robert DuBois is a Vietnam draft evader, who had a mental breakdown and became obsessed with the Vietnam War after learning that his brother had gone in his stead.[13] DuBois was drafted to serve in the United States Armed Forces.
