Robert Warwick. Robert Warwick was 38 in A Girl's Folly as 'Kenneth Driscoll'.
Doris Kenyon. Doris Kenyon was 19 in A Girl's Folly as 'Mary Baker'.
June Elvidge. June Elvidge was 23 in A Girl's Folly as 'Vivian Carleton'.
Chester Barnett. Chester Barnett was 32 in A Girl's Folly as 'Johnny Applebloom'.
Johnny Hines. Johnny Hines was 21 in A Girl's Folly as 'Hank'.
Josef von Sternberg. Josef von Sternberg was 22 in A Girl's Folly as 'Cameraman (uncredited)'.
Maurice Tourneur. Maurice Tourneur was 41 in A Girl's Folly as 'Director (uncredited)'.
Leatrice Joy. Leatrice Joy was 23 in A Girl's Folly Maurice Tourneur. Maurice Tourneur was 41 in A Girl's Folly as 'Director, Writer'
John van den Broek. John van den Broek was >> in A Girl's Folly as 'Director of Photography'
Frances Marion. Frances Marion was 28 in A Girl's Folly as 'Writer'
Clarence Brown. Clarence Brown was 26 in A Girl's Folly as 'Editor'