Stefanie Powers: Stefanie Powers. Actress: Hart to Hart. Stefanie Powers began her career as a teenager dancing for the Michele Paniaff Ballet Company and Jerome Robbins. At 16 she was put under contract to Columbia Pictures in the twilight of the Hollywood Studio System where she made 15 motion pictures and was loaned to United Artists for the John Wayne production of [error]. MGM Television bought her contract from Columbia to present...