The Rogue Simulant captain was played by veteran British actor Don Henderson, known for the role of High General Tagge in the first "" film, and for his TV role as George Bulman. This episode proved to be Henderson's last acting work, and he died soon after the episode was broadcast. Henderson was in the latter stages of terminal throat cancer during filming, and his husky voice was not a special effect as many viewers believed but was due to his condition.