Robert B. Strong (11 February 1906 – 14 July 1993; age 87) was an actor who played an Ekosian SA guest in the Star Trek: The Original Series second season episode "Patterns of Force" and a Romulan guard in the third season episode "The Enterprise Incident". As a background performer, he was not credited for his roles.
He filmed his scene for "Patterns of Force" on 5 December 1967 at Desilu Stage 10. He filmed his scenes for "The Enterprise Incident" on Monday 24 June 1968 and Tuesday 25 June 1968 at Paramount Stage 3.
His career spans from the 1930s to the 1980s, appearing in over 140, mostly uncredited bit and background roles on film and television. His feature film work include Force of Evil (1948, with Max Wagner), Mystery Street (1950, starring Ricardo Montalban, and featuring John Crawford, Frank Overton, and Noble Chissell), A Star Is Born (1954, with Joseph Glick, Bob Hoy, Carey Loftin, Joseph Mell, and Monty O'Grady), Around the World in 80 Days (1956, with Walter Bacon, Al Cavens, Dick Cherney, Noble Chissell, Bill Couch, Sr., Joe Garcio, Joseph Glick, Lars Hensen, Chuck Hicks, Shep Houghton, Max Kleven, Keye Luke, Monty O'Grady, Victor Paul, Walter Soo Hoo, Edwin Rochelle, and Ron Veto), Raintree County (1957, with DeForest Kelley, Michael Dante, Phyllis Douglas, Mike Dugan, Joseph Glick, Edwin Rochelle, and Ron Soble), The Buccaneer (1958, with Steve Marlo, Majel Barrett Roddenberry, David Armstrong, Bill Erwin, Lars Hensen, William Meader, Gil Perkins, Carl Saxe, and Max Wagner), North By Northwest (1959, with Ken Lynch, Stanley Adams, Roger C. Carmel, Bill Catching, Larry Dobkin, Monty O'Grady, and Arthur Tovey), Finian's Rainbow (1968, with Vince Howard, Carey Foster, and Maurishka), The Way We Were (1973, with Diana Ewing, Don Keefer, Roy Jenson, Nick Borgani, Dick Cherney, and Robert Hitchcock), The Towering Inferno (1974, with Paul Comi, Gregory Sierra, Elizabeth Rogers, Dave Armstrong, Sandra Gimpel, and Steve Marlo), The Hindenburg (1975, with René Auberjonois, Alan Oppenheimer, Peter Canon, Charles Macaulay, Rex Holman, Shep Houghton, John Hugh McKnight, Vic Perrin, and William Wintersole, directed by Robert Wise), and The Karate Kid (1984, with Larry Drake and Monty O'Grady).