Question: What actor portrayed "Pa" in the Little House on the Prairie tv series?
Related documents: [0]  [DOC] Charles Phillip Ingalls ( ; January 10, 1836June 8, 1902) was the father of Laura Ingalls Wilder, known for her "Little House" series of books. Ingalls is depicted as the character "Pa" in the books and the television series. [END] 
[1]  [DOC] Michael Landon (born Eugene Maurice Orowitz; October 31, 1936 – July 1, 1991) was an American actor, writer, director, and producer. He is known for his roles as Little Joe Cartwright in "Bonanza" (1959–73), Charles Ingalls in "Little House on the Prairie" (1974–83), and Jonathan Smith in "Highway to Heaven" (1984–89). Landon appeared on the cover of "TV Guide" 22 times, second only to Lucille Ball. [END] 
Answer: 
Michael Landon
Michael Landon