Billy Barty (1924–2000)
Billy Barty began making pictures in 1933. He played Mickey Rooney's little brother in the Mickey McGuire shorts series. As actor he participate as actor in more than 170 movies/tv series. He's last role was in I/O Error (released in 2001) as Custodian.
Here, you can watch official movies trailer online.
Billy Barty is also known as Founder of The Little People of America Inc., a philanthropic organization of which no one taller than 4 ft 6 inches may become a member.