Was a voice-over regular on the popular 1930s weekly radio series
"Gangbusters", which featured stories based on actual incidents. Each program ended with descriptions of wanted
criminals, many of whom were later arrested due to avid listener
fugitives..
First acted on Broadway at the age of nine, opposite Leon Errol and Irene Dunn in "Yours Truly" (1927). Later became a prolific supporting actor, under contract to RKO, Warner Brothers and Universal.
His children are Tracey McCallion Campbell and Denis McCallion.
