Question: The actor who co-starred with George Kennedy and Vonetta McGee in The Eiger Sanction was born on what date?

Context paragraphs:
Mike Hoover: Mike Hoover is an American mountaineer, rock climber and cinematographer.  He first became known for an Academy Award nominated documentary short, "Solo", of him climbing El Capitan as a lone climber.  His first major involvement in commercial film was in "The Eiger Sanction" (1975) in which he taught Clint Eastwood how to climb in the Yosemite valley before the film was shot in Grindelwald, Switzerland in 1974.  He has since been a cinematographer for the documentaries "To the Ends of the Earth" (1983), "To the Limit" (1989), "The Endless Summer 2" (1994) and "".  In the late 1980s, he made 18 trips to Afghanistan to shoot footage of the bloody war in the country.  The footage was later featured in a program named "The Battle for Afghanistan" (1987).  Hoover, who has been in charge of various film teams, has filmed all across the world, particularly physically and politically difficult filming locations, from the precarious rock faces of the Eiger, to filming Everest and K2, to canoeing in the Venezuelan jungle.

The Loo Sanction: The Loo Sanction is a 1973 sequel novel to "The Eiger Sanction" written by Trevanian.

Frank Stanley (cinematographer): Frank Walter Stanley (May 5, 1922 in New York – December 21, 1999 in Sarasota, Florida) was an American cinematographer.  He is best known for four Clint Eastwood films in a row: "Breezy" (1973), "Magnum Force" (1973), "Thunderbolt and Lightfoot" (1974) and "The Eiger Sanction" (1975).  During the filming of "The Eiger Sanction", shot in Switzerland, which required a great deal of precarious mountain-climbing cinematography,

Jack Cassidy: John Joseph Edward "Jack" Cassidy (March 5, 1927 – December 12, 1976) was an American actor, singer and director of stage, film, and television.

Reiner Schöne: Reiner Schöne (born 19 January 1942) is a German actor, known for such roles as Dukhat in the "Babylon 5" series, Shinnok in "", Esoqq in the "" episode "", Kolitar in the television series Sliders and "The Eiger Sanction" as Karl Freytag.

The Eiger Sanction: The Eiger Sanction is a 1972 thriller novel by Trevanian, the pen name of Rodney William Whitaker.  The story is about a classical art professor and collector who doubles as a professional assassin, and who is coerced out of retirement to avenge the murder of an old friend.  The novel was made into a film directed by and starring Clint Eastwood in 1975.  Whitaker wrote a sequel entitled "The Loo Sanction".

Peggy Feury: Peggy Feury (30 June 1924 — 20 November 1985) (born Margaret Feury) was an actress on Broadway, in films, and on television.  She became a highly regarded acting teacher in New York and then in Los Angeles.  Her students included Sean Penn, Meg Ryan, Johnny Depp, Ellen Burstyn, Jeff Goldblum, Vonetta McGee, Lou Gossett, Jr., James Cromwell, Crispin Glover, Eric Stoltz, Laura Dern, Lily Tomlin, Charlie Sheen, Annette O'Toole, Anjelica Huston, Meg Tilly, Nicolas Cage, Michelle Pfeiffer, and Oscar-winning screenwriters Bobby Moresco and Callie Khouri.

The Eiger Sanction (film): The Eiger Sanction is a 1975 American thriller film directed by and starring Clint Eastwood.  Based on the 1972 novel "The Eiger Sanction" by Trevanian, the film is about an art history professor, mountain climber and former assassin once employed by a secret United States government agency who is blackmailed into returning to his deadly profession and do one more "sanction", a euphemism for killing.  He agrees to join an international climbing team in Switzerland planning an ascent of the Eiger north face in order to complete a second sanction to avenge the murder of an old friend.  The film was produced by Robert Daley for Eastwood's Malpaso Company, with Richard D. Zanuck and David Brown as executive producers, and co-starred George Kennedy, Vonetta McGee and Jack Cassidy.

Jean-Pierre Bernard: Jean-Pierre Bernard (22 January 1933 – 7 July 2017) was a French film, television and stage actor.  He has appeared in many French films over a 50-year period and became known internationally for his portrayal of a French climber named Jean-Paul Montaigne in the 1975 film "The Eiger Sanction" that was directed by and starred Clint Eastwood.

Marmot (company): Marmot is an outdoor clothing and sporting goods company founded in 1974 as Marmot Mountain Works.  The company was founded in Grand Junction, Colorado by local resident Tom Boyce and two University of California, Santa Cruz students, David Huntley and Eric Reynolds, who shared the common goal of making their own mountaineering equipment.  Two years prior to the founding of Marmot, Boyce secured an order for the climbing apparel used in the film "Eiger Sanction" starring Clint Eastwood, and Huntley made the original prototype gear that Boyce was using on the Wolper Productions/ National Geographic documentary "Journey to the Outer Limits", about the Colorado Outward Bound School.  It was during this documentary production that cameraman Mike Hoover, who later worked on "Eiger Sanction", saw the equipment that Boyce was using during the portion filmed in Peru.  Just prior to Christmas 1973, Mike Hoover called Boyce and placed the order that led to the formation of the company in Grand Junction.

Supporting paragraphs: The Eiger Sanction (film) Jack Cassidy
Answer: March 5, 1927