Charles John Holt, Jr.[1] (May 31, 1888 – January 18, 1951) was an American motion picture actor who was prominent in both silent and sound movies, particularly Westerns.

Holt was born in 1888 in the Fordham section of The Bronx, New York, the son of an Episcopal priest at St. James Church.

[2] Following Holt's father's death, the family moved to Manhattan, where Jack, his mother, and brother Marshall lived with his married sister, Frances.

In his 1914 film debut, Holt rode a horse down a steep embankment into the Russian River in a scene for Salomy Jane.

Tim Holt succeeded George O'Brien as the star of RKO Radio Pictures' "B" westerns, and co-starred with his father in The Treasure of the Sierra Madre (1948), with Jack as a grubby vagrant.

The Holt family performed together on the "Drifty" episode of "All Star Western Theater" (KNX-CBS Pacific Network, 1946/47) as a father/son/daughter trio featuring a dramatic sketch and additional entertainment by Foy Willing and the Riders of the Purple Sage.

[11] Margaret Mitchell, although having no say in the casting for Gone With the Wind (1939), expressed her preference for Jack Holt as Rhett Butler, because her personal favorite, Charles Boyer, had a French accent.