Task: Explanation
Input (English): Robert Conrad Falk (born Conrad Robert Falk; March 1, 1935) is an American film and television actor, singer, and stuntman. He may be best known for his role in the 1965–69 television series "The Wild Wild West", playing the sophisticated Secret Service agent James T. West. He portrayed World War II ace Pappy Boyington in the television series "Baa Baa Black Sheep" (later syndicated as "Black Sheep Squadron"). He was a recording artist of pop/rock songs in the early 1960s as Bob Conrad before he began his acting career. He has hosted a weekly two-hour national radio show ("The PM Show with Robert Conrad") on CRN Digital Talk Radio since 2008. Question: Who may be best known for his role in the 1965–69 television series "The Wild Wild West" who also starred in an action 1977 film costarring Thayer David? Answer: Robert Conrad Falk
Output (English):  He may be best known for his role in the 1965–69 television series The Wild Wild West, playing the sophisticated Secret Service agent James T. West.