Shirley Jones. Shirley Jones was 31 in The Secret of My Success as 'Marigold Marado'.
Honor Blackman. Honor Blackman was 40 in The Secret of My Success as 'Lily, Baroness von Lukenberg'.
Stella Stevens. Stella Stevens was 26 in The Secret of My Success as 'Violet Lawson'.
James Booth. James Booth was 37 in The Secret of My Success as 'Arthur Tate'.
Richard Vernon. Richard Vernon was 40 in The Secret of My Success as 'Lord Hetherby'.
Amy Dalby. Amy Dalby was >> in The Secret of My Success as 'Mrs. Tate'.
Ann Lancaster. Ann Lancaster was 45 in The Secret of My Success as 'Angela Pringle'.
Martin Benson. Martin Benson was 47 in The Secret of My Success as 'Rex Mansard'.
Reginald Beckwith. Reginald Beckwith would have been no older than 56 in The Secret of My Success as 'Gen. Ferdinand Velez'.
Lionel Jeffries. Lionel Jeffries was 39 in The Secret of My Success as 'Inspector Hobart'.
Ernest Clark. Ernest Clark was 53 in The Secret of My Success as 'Earl of Aldershot's solicitor'.Andrew L. Stone. Andrew L. Stone was 63 in The Secret of My Success as 'Director, Writer, Producer'Davis Boulton. Davis Boulton was 54 in The Secret of My Success as 'Director of Photography'Virginia L. Stone. Virginia L. Stone was >> in The Secret of My Success as 'Producer'Noreen Ackland. Noreen Ackland was >> in The Secret of My Success as 'Editor'
Irene Howard. Irene Howard was 62 in The Secret of My Success as 'Casting'Tom Smith. Tom Smith was 45 in The Secret of My Success as 'Makeup Artist'Tom Sachs. Tom Sachs was >> in The Secret of My Success as 'Production Manager'Joan Smallwood. Joan Smallwood was >> in The Secret of My Success as 'Hairstylist'