(1973) Keir Dullea, Walter Koenig, Gay Rowan, Robin Ward, Henry Beckman. The people of The Ark discover a humanoid alien (Koenig) living in one of their domes. His spaceship needs repairs before he can return to his own planet, so he enlists help from the Ark members. But there is some duplicity going on—what is the alien hiding about his real intentions? This was Koenig’s first major science fiction role since Star Trek. Great color.