21. Who is the first Oscar winner to host the Academy Awards?
From Quiz Oscar - The First 75 Years, Part 2
Answer:
Frank Capra
Frank Capra (Best Director, 1934, for "It Happened One Night") hosted the 1935 ceremony on February 27, 1936. James Stewart (Best Actor, 1941), was the first Oscar-winning actor to co-host, in 1947. The first solo Oscar-winning actor to host was Frank Sinatra (Best Actor, 1953), in 1963; he also co-hosted in 1975. Jack Lemmon (Best Supporting Actor, 1955, and Best Actor, 1973) hosted in 1964 and 1985, and co-hosted in 1972. Whoopi Goldberg (Best Supporting Actress, 1990) hosted in 1994, 1996, 1999 and 2002.