Question: Which American actor made a cameo voiceover role as a flight attendant on the 1942 American animated movie "Saludos Amigos"?

Context articles: José Carioca
South of the Border with Disney
Panchito Pistoles
Melody Time
Stuart Buchanan
Saludos Amigos
The Three Caballeros
Larry Gaye: Renegade Male Flight Attendant
Walt &amp; El Grupo
The Taking of Flight 847: The Uli Derickson Story

José "Zé" Carioca ( ; ] ] ) is a Disney cartoon character drawn as an anthropomorphic parrot from Rio de Janeiro, Brazil (thus "Carioca", a term which refers to a person born there).
 José was created in 1942 for the movie "Saludos Amigos" as a friend of Donald Duck, described by "Time" as "a dapper Brazilian parrot, who is as superior to Donald Duck as the Duck was to Mickey Mouse".
 He returned in the 1944 film "The Three Caballeros" along with Donald and a Mexican rooster named Panchito Pistoles.
South of the Border with Disney is a 1942 Disney short documentary film.
 It was shot in the same occasion "Saludos Amigos" was, when Walt Disney and a group of eighteen artists, musicians and writers went to South America looking for inspirations for a movie.
 While "Saludos Amigos" is the result of this voyage, alternating animated shorts to the sequences from the travel that inspired them, "South of the Border with Disney" is more of a behind-the-scenes documentary showing only the travel and the genesis of cartoons not only for "Saludos Amigos" and "The Three Caballeros", but also some others used in later occasions.
 The most notable example is a female Armadillo used for a 1943 Pluto cartoon, "Pluto and the Armadillo".
 Film also includes some pencil test animation.
Panchito Pistoles is a cartoon character drawn as an anthropomorphized rooster.
 He appeared in the film "The Three Caballeros".
 Later he appeared in several Disney comics, including Don Rosa's "The Three Caballeros Ride Again" and "The Magnificent Seven (Minus 4) Caballeros".
 Panchito was the only one of the Three Caballeros to never appear in "Saludos Amigos", as he did not yet exist when the 1942 film was released before he first appeared in the 1944 film.
Melody Time (working title All in Fun) is a 1948 American live-action animated film and the 10th theatrically released animated feature produced by Walt Disney.
 It was released to theatres by RKO Radio Pictures on May 27, 1948.
 Made up of several sequences set to popular music and folk music, the film is, like "Make Mine Music" before it, the popular music version of "Fantasia" (an ambitious film that proved to be a commercial disappointment upon its original theatrical release).
 "Melody Time", while not meeting the artistic accomplishments of "Fantasia", was mildly successful.
 It is the fifth Disney package film following "Saludos Amigos", "The Three Caballeros", "Make Mine Music", and "Fun and Fancy Free".
Stuart Buchanan (March 18, 1894 – February 4, 1974) was an American actor and deep-voice announcer, who was the casting director for the Walt Disney Company, best known for voicing Humbert the Huntsman in the 1937 Disney animated film "Snow White and the Seven Dwarfs".
 He also made cameo voiceover roles as a flight attendant in "Saludos Amigos" (1942) and in "Super-Speed" (1935).
 He also voiced Goofy in "The Mickey Mouse Theater of the Air" in 1938.
Saludos Amigos (Spanish for "Greetings, Friends") is a 1942 American live-action animated package film produced by Walt Disney and released by RKO Radio Pictures.
 It is the sixth Disney animated feature film and the first of the six package films produced by Walt Disney Productions in the 1940s.
 Set in Latin America, it is made up of four different segments; Donald Duck stars in two of them and Goofy stars in one.
 It also features the first appearance of José Carioca, the Brazilian cigar-smoking parrot.
 "Saludos Amigos" was popular enough that Walt Disney decided to make another film about Latin America, "The Three Caballeros", to be produced two years later.
 "Saludos Amigos" premiered in Rio de Janeiro on August 24, 1942.
 It was released in the United States on February 6, 1943.
 At 42 minutes, it is Disney's shortest animated feature to date.
 It garnered positive reviews and was theatrically reissued in 1949, when it was shown on a double bill with the first reissue of "Dumbo".
The Three Caballeros is a 1944 American live-action animated musical package film produced by Walt Disney and released by RKO Radio Pictures.
 The film premiered in Mexico City on December 21, 1944.
 It was released in the United States on February 3, 1945 and in the UK that March.
 The seventh Disney animated feature film, the film plots an adventure through parts of Latin America, combining live-action and animation.
 This is the second of the six package films released by Walt Disney Productions in the 1940s, following "Saludos Amigos" (1942).
Larry Gaye: Renegade Male Flight Attendant is a 2015 American comedy film.
 It stars Mark Feuerstein, Danny Pudi, Jayma Mays, Patrick Warburton and Rebecca Romijn, and was directed by Sam Friedlander and written by Mike Sikowitz.
 The film concerns a flight attendant who discovers that the airline company he is working for is trying to slash costs by having human flight attendants replaced with actual robots.
 It was Friedlander's feature film debut as director.
Walt & El Grupo is a 2008 documentary film written and directed by Theodore Thomas.
 A presentation of Walt Disney Family Foundation Films, the film tells the story of Walt Disney's 1941 U.S. Government sponsored trip to South America where he and a group of artists gathered material which would be used to create two of Disney's animated feature films, "Saludos Amigos" and "The Three Caballeros".
The Taking of Flight 847: The Uli Derickson Story, also marketed as The Flight on video, is a 1988 made-for-TV film based on the actual hijacking of TWA Flight 847 as seen through the eyes of Uli Derickson, the chief flight attendant.
 Derickson herself acted as a consultant for the movie.
 The film was directed by Paul Wendkos.