Production is set to begin later this month.
Diane and Steiner join previously announced fellow cadets Kerrice Brooks, Bella Shepard and George Hawkins.
Hunter portrays the captain and chancellor of Starfleet Academy, and Giamatti is the seasons villain.
Sandro RostaYellow Belly Photo
Hunter portrays the captain and chancellor of Starfleet Academy, and Giamatti is the seasons villain.
