Biography

Throughout their brief, young careers, the boys would mischievously traded roles on the set of movies in which they appeared together. Their own mother couldn't tell them apart unless Billy was wearing his glasses or the twins were writing (Bobby was right-handed and Billy was left-handed).

Their last name rhymes with "walk.".

His identical twin Billy later followed his brother and quit acting to become a sound editor. He died in 2006, a year before Bobby.

Served in the Army Air Forces during WWII and was stationed in the Phillippines at one point.

The blue-eyed twins were 99 pounds apiece and 5 feet tall at the time they were cast in The Prince and the Pauper (1937).