William Collier Jr. (born Charles F. Gall Jr.; February 12, 1902 – February 5, 1987) was an American stage performer, producer, and a film actor who in the silent and sound eras was cast in no fewer than 89 motion pictures.

[4] When his parents divorced, his mother, the actress Paula Marr, remarried the actor William Collier Sr. who adopted Charles (the two did share a resemblance) and gave the boy the new name William Collier Jr.[5] Collier's acting experience in childhood, having first appeared on stage at age seven, helped him get his first movie role at age 14 in The Bugle Call (1916).

[8] He later became a popular leading man in the 1920s and successfully made the transition from silent into sound film.

[9] He returned to the United States in the late 1940s and began producing drama series for television.

In February 1960, in recognition of his contributions to the entertainment industry, Collier received a star on the Hollywood Walk of Fame.