Ronald Reagan was an actor.
He went into acting.
Ronald reagan
He got his start in the early 1930s as a radio announcer of the play by play of Chicago Cubs games.
He was acting during all eight years in office.
He was acting in Hollywood in the year 1950.
Ronald Reagan's last acting credit was in 1965, the year before he was elected Governor of California.
I am assuming this is a typo; and you really mean "Which presidents former occupation was acting?" and the answer is; Ronald Reagan.
Ronald Reagan never started star wars. George Lucas did in 1977
Before being elected president, Ronald Reagan worked as a Hollywood actor.Ronald Reagan
Ronald Reagan
The answer is Ronald Reagan.