1993
as Nathan Locke
1983
as Harold Caswell
1939
as Fred Blythe
1948
as Jeremiah as an Adult - Narrator (voice)
1957
as Dr. Paul Beecher
1943
as Johann Stensgard
1960
as Maj. John Wesley Powell
1937
as Waldo Beaver
1934
as Jerry Hutchins
1975
as Dr. Bowen
as Major Dean
1952
as Dr. Wilson aka Doc
1949
as Paul Jean d'Ur
1992
as (archive footage)
as Raymond Fleuriot
1938
as Paul Ferguson
1953
as Dr. Glenson
1959
as Howard Compson
1979
as Prof. Eric Wohlstrom
1990
as Cameron
