三人行
On "Three's Company", Kline played Larry Dallas, a playboy neighbor, used car salesman, and best friend to John Ritter's Jack Tripper. Kline appeared in 110 episodes of "Three's Company" from 1977 to 1984, also appearing as Larry Dallas in the spin-off shows "The Ropers" (1979) and "Three's a Crowd" (1985). Larry has the distinction of being the only other character besides Jack Tripper to appear on "Three's Company" and both of its spin-offs.