Monty O'Grady
Monty O'Grady  was an actor who played an Eminian councilor in the  first season episode  and a Janus VI civilian engineer in . He filmed his scenes for the former on Tuesday  and Wednesday  at Desilu Stage 10. As a background performer, he received no credit for his appearances. 

A former child actor, O'Grady was best known as an early member of the  comedy troupe in the mid-1920s. As an adult, he became an extremely prolific background extra, appearing in almost four hundred film and television projects from the early-1940s to the mid-1990s.

His feature film work includes The Wolf Man (1941), The Palm Beach Story (1942, with Max Wagner), Casablanca (1942), Heaven Can Wait (1943), Neptune's Daughter (1949, with Ricardo Montalban and Carl Saxe), Gun Crazy (1950), Gentlemen Prefer Blondes (1953, with Chuck Hicks and Arthur Tovey), The Band Wagon (1953, with Robert Gist, Julie Newmar, Lawrence Montaigne, Alan Marston, Dick Cherney, and Paul Power), Dial M for Murder (1954), A Star Is Born (1954, with Dave Armstrong, Carey Loftin, and Joseph Mell), To Catch a Thief (1955, with Reginald Lal Singh), High Society (1956, with Shep Houghton), Giant (1956, with Paul Fix), Funny Face (1957), Silk Stockings (1957, with Edwin Rochelle), An Affair to Remember (1957, with Lars Hensen), Witness for the Prosecution (1957, with Ian Wolfe, Torin Thatcher, Walter Bacon, Benjie Bancroft, Bill Irwin, and Arthur Tovey), North by Northwest (1959, with Robert Ellenstein, Stanley Adams, Roger C. Carmel, Bill Catching, Larry Dobkin, and Arthur Tovey), Pillow Talk (1959, with Joseph Mell and Charles Seel), The Apartment (1960, with Ray Walston), It Happened at the World's Fair (1963, with Gary Lockwood, Yvonne Craig, Benjie Bancroft,, Pete Kellett, Troy Melton, and Bill Quinn), The Sound of Music (1965, starring Christopher Plummer, featuring William Meader, and directed by Robert Wise), Walk Don't Run (1966, with Samantha Eggar, George Takei, and Miko Mayama), Johnny Got His Gun (1971, with Peter Brocco, Byron Morrow, David Soul, Peter Virgo, Jr., Bruce Watson, and Arthur Tovey), What's Up, Doc? (1972, with Kenneth Mars, Graham Jarvis, Stefan Gierasch, Jack Perkins, Carl Saxe, Tom Anfinsen, Shep Houghton, and Arthur Tovey), Conquest of the Planet of the Apes (1972, with Ricardo Montalban, Lou Wagner, and Paul Comi), The Poseidon Adventure (1972, with John Crawford, Frieda Rentie, Phil Adams, Bill Catching, Dick Durock, Victor Paul, Elizabeth Rogers, David Sharpe, George Sawaya, Paul Stader, and Tom Steele), Blazing Saddles (1974, with David Huddleston, Dave Armstrong, Bill Catching, Dick Cherney, Robert Hitchcock, Hal Needham, Jack Perkins, Al Roberts, George Sawaya, David Sharpe, April Tatro, and Bill Zuckert), Young Frankenstein (1974, with Terri Garr, Kenneth Mars, Ian Abercrombie, Benjie Bancroft, Lars Hensen, John Hugh McKnight, Arthur Tovey, and Max Wagner), Marathon Man (1976, with Fritz Weaver, Marc Lawrence, and Mark L. Taylor), Close Encounters of the Third Kind (1977, starring Terri Garr), The China Syndrome (1979, with Marc Alaimo), Meteor (1979, with Brian Keith, Joseph Campanella, Michael Zaslow, Bibi Besch, Clyde Kusatsu, Bill Couch, Sr., and Robert Hitchcock), and The Karate Kid (1984, with Larry Drake and Robert Strong).

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Performers
TOS performers