B
Billy Gilbert
1891 – 1961· Hollywood, California, USA
*** FYI: NOT TO BE CONFUSED WITH ACTOR BILLY GILBERT (born William Gilbert Barron) WHO LIVED FROM 1894 TO 1971. *** Billy Gilbert (born William V. Campbell; September 15, 1891—April 29, 1961) was involved in more than 150 American films between 1913 and 1936, working as either an actor, extra, or director. Gilbert spent his entire career working almost exclusively in shorts, often uncredited. [biography (excerpted) from Wikipedia]
Filmography
As actor

Fatty Joins the Force
1913Fighter

The Rounders
1914Doorman in Blackface

Mabel's Strange Predicament
1914Bellboy (uncredited)

His Musical Career
1914Piano Store Salesman

His Favorite Pastime
1914Shoeshine Boy

Caught in a Cabaret
1914Cabaret Patron (uncredited)

A Film Johnnie
1914Theater Usher (uncredited)

Cruel, Cruel Love
1914Short Ambulance Attendant

Fatty's New Role
1915