Which of these actors starred in the first season of "Mission Impossible"?

Steven Hill, (Solomon Krakowsky), American actor (born Feb. 24, 1922, Seattle, Wash.—died Aug. 23, 2016, New York, N.Y.), portrayed the steady and pragmatic district attorney Adam Schiff on the first 10 seasons (1990–2000) of the enduringly popular TV series Law & Order, a role for which he received two Emmy Award nominations (1998 and 1999).

He was also an original cast member on the iconic adventure series Mission Impossible, though he remained only for the first season (1966–67).and left due to a dispute with the shows producer. Hill began his career performing on radio before moving to New York City, where he made his Broadway debut in a small part in A Flag Is Born (1946), about the creation of Israel.

He also played Stefanowski (1948–51) in the Tony Award-winning wartime comedy Mister Roberts and originated the roles of Bernie Dodd in Clifford Odets’s The Country Girl (1950–51) and Sigmund Freud in A Far Country (1961) on Broadway. He was an original member of the prestigious workshop the Actors Studio, and his first TV appearance was in the 1948–50 show Actors Studio, which presented televised plays. He performed in such films as A Lady Without Passport (1950), Storm Fear (1955), Rich and Famous (1981), Heartburn (1986), Brighton Beach Memoirs (1986), and Billy Bathgate (1991).