Question: Of what nationality is the actor who portrayed Chris Adams in the first two Guns of the Magnificent Seven films?

Context articles: Chris Adams (character)
The Magnificent Seven (TV series)
Return of the Seven
Devil's Bowling Green Battery
Magnificent Seven Houses
The Magnificent Seven Ride
Yul Brynner
Guns of the Magnificent Seven
24 cm Kanone 3
Type 341 Radar

Chris Adams is a fictional character in the 1960 western film "The Magnificent Seven", originally played by Yul Brynner, whose portrayal of Chris Adams resembles Takashi Shimura's representation of Kambei.
The Magnificent Seven is an American western television series based on the 1960 movie, which was itself a remake of the Japanese film "Seven Samurai".
 The series premiered on January 3, 1998, and ran for two seasons on CBS, airing through July 3, 2000.
 The cast of "The Magnificent Seven" included Michael Biehn, Eric Close, and Ron Perlman.
 Robert Vaughn, who played one of the seven gunmen in the original 1960 movie, had a recurring role as a crusading judge on the series.
Return of the Seven (1966) (also called Return of the Magnificent Seven, and The Magnificent Seven 2) is the first sequel to the western, "The Magnificent Seven" (1960).
 Yul Brynner is the sole returning cast member from the first film, portraying Chris Adams.
Devil's Bowling Green Battery was an artillery battery in the British Overseas Territory of Gibraltar.
 In 1859 the battery had two guns that looked over Little Bay.
 This battery was on the shoreline but it was overlooked by the Buena Vista Battery and the seven guns of the Europa Pass Battery
The Magnificent Seven Houses are a group mansions located along one side of Queen's Park Savannah in northern Port of Spain, Trinidad and Tobago.
 They are located on Maraval Road in the St Clair neighborhood of Port of Spain, and were built on land that was previously used as a government stock farm.
 Built between 1902 and 1910, the buildings are listed as heritage sites at the National Trust of Trinidad and Tobago.
 Stollmeyer's Castle was the first building constructed in the neighborhood, and took several years to complete, as was typical with the Magnificent Seven Houses.
The Magnificent Seven Ride (also known as The Magnificent Seven 4) is a 1972 western film and is the third and last sequel of the 1960 western, "The Magnificent Seven".
 It stars Lee Van Cleef as Chris Adams, succeeding Yul Brynner and George Kennedy in the role.
 It was directed by George McCowan.
Yul Brynner (born Yuliy Borisovich Briner, Russian: Юлий Борисович Бринер ; July 11, 1920 – October 10, 1985) was a Russian-born film and stage actor.
Guns of the Magnificent Seven is a 1969 western, styled in the genre of a Zapata Western, the second sequel to the classic 1960 western action film, "The Magnificent Seven", itself based on Akira Kurosawa's "Seven Samurai" (1954).
 The film was directed by Paul Wendkos and produced by Vincent M. Fennelly.
 It stars George Kennedy as Chris Adams, the character Yul Brynner portrayed in the first two films.
The 24 cm Kanone 3 (24 cm K 3) was a German heavy siege gun used in the Second World War by the first battalion of Artillerie-Regiment 84.
 Four were in service when Germany invaded Poland, assigned to the first two batteries of I./AR 84.
 In the Battle of France the battalion still only had four guns.
 By Operation Barbarossa all three batteries were equipped with two guns apiece.
 This situation did not change for the next two years.
The Type 341 Radar is a fire control radar in conjection with the Type 76A dual-37mm automatic AAA gun used on a number of early PLA-N frigates and destroyers, and it has been succeeded by Type 347 Radar in Chinese service.
 Type 341 is the first generation gun control radar indigenuously developed in China and it is used to control 30 mm and 37 mm guns.
 Type 341 radar can direct two guns simultaneously against a single target.
 Development begun in 1970, with design finalized in December 1974.
 First prototype was completed in May 1975, and two more delivered for further evaluation in December 1979.
 Design was finalized in March 1984, and seven months later, production was transferred from the original Shanghai 2nd Radio Factory to Factory 4110 in Guizhou.
 In 1983, Type 341 won the Scientific and Technological Achievement Award in Fourth Ministry of Machine-Building of the PRC.