Bessie Love. Bessie Love was 26 in The Lost World as 'Paula White'.
Lewis Stone. Lewis Stone was 45 in The Lost World as 'Sir John Roxton'.
Wallace Beery. Wallace Beery was 39 in The Lost World as 'Prof. Challenger'.
Lloyd Hughes. Lloyd Hughes was 27 in The Lost World as 'Edward E. Malone'.
Alma Bennett. Alma Bennett was 20 in The Lost World as 'Gladys Hungerford'.
Arthur Hoyt. Arthur Hoyt was 50 in The Lost World as 'Prof. Summerlee'.
Margaret McWade. Margaret McWade was 52 in The Lost World as 'Mrs. Challenger'.
Bull Montana. Bull Montana was 37 in The Lost World as 'Ape Man'.
Frank Finch Smiles. Frank Finch Smiles was 59 in The Lost World as 'Challengers Diener'.
Jules Cowles. Jules Cowles was 47 in The Lost World as 'Zambo'.George Bunny. George Bunny was 57 in The Lost World as 'Colin McArdle'.Charles Wellesley. Charles Wellesley was 51 in The Lost World as 'Maj. Hibbard'.
Arthur Conan Doyle. Arthur Conan Doyle was 65 in The Lost World as 'Himself'.
Virginia Brown Faire. Virginia Brown Faire was 20 in The Lost World as 'Marquette'.
Nelson McDowell. Nelson McDowell was 54 in The Lost World as 'Lawyer'.
Gilbert Roland. Gilbert Roland was 19 in The Lost World as 'Extra'.
Leo White. Leo White was 51 in The Lost World as 'Percy Potts'.Harry O. Hoyt. Harry O. Hoyt was 39 in The Lost World as 'Director'
Arthur Edeson. Arthur Edeson was 33 in The Lost World as 'Director of Photography'Marion Fairfax. Marion Fairfax was 49 in The Lost World as 'Screenplay'Arthur Conan Doyle. Arthur Conan Doyle was 65 in The Lost World as 'Author'
Cecil Holland. Cecil Holland was 37 in The Lost World as 'Makeup Artist'Perc Westmore. Perc Westmore was 20 in The Lost World as 'Makeup Artist'
Willis H. O'Brien. Willis H. O'Brien was 38 in The Lost World as 'Special Effects, Visual Effects'Marcel Delgado. Marcel Delgado was >> in The Lost World as 'Special Effects'Milton Menasco. Milton Menasco was 35 in The Lost World as 'Art Direction'