Leo Penn

Leo Z. Penn was an actor and director from Lawrence, Massachusetts, who directed. Because he ran a day over during filming, and thus ran overbudget, he was not invited back to direct more episodes. Outside Star Trek, Penn helmed well over 400 primetime hours on a wide variety of series, ranging from Star Trek to I Spy to Diagnosis Murder. In 1973, he received an Emmy for directing a two-hour episode of Columbo titled "Any Port in a Storm". Before becoming a director, he acted on stage and in a few feature films, beginning with Shame (1945). His film career had just begun when Penn (a noted union supporter) was blacklisted after refusing to testify to the House Un-American Activities Committee. He also acted in dozens of TV shows.

He is the father of actor, musician , and the late actor. He was also the brother-in-law of TOS guest actor Alfred Ryder. Both he and Chris appeared with William Shatner in North Beach and Rawhide, a 1975 TV movie which also featured Nicholas Guest.