Peter Breck (Kendal's Father) previously played Senator Orville in O.B.I.T. (1963). Along with Leonard Nimoy, David McCallum, Cliff Robertson and Barbara Rush, he is one of only five actors to appear in both The Outer Limits (1963) and The Outer Limits (1995).
Per the title, the term "Mind Over Matter" was used in reference to paranormal phenomena such as extra-sensory perception and psychokinesis during the 1960s and 1970s.