Générique complet
Le Monde pétrifié
John Carradine
Prof. Millard Wyman
Robert Clarke
Craig Randall
Phyllis Coates
Dale Marshall
AW
Allen Windsor
Paul Whitmore
Sheila Noonan
Lauri Talbott
George Skaff
Dr. J.R. Matheny
MB
Maurice Bernard
Old Man in the Caverns
JM
Joe Maierhouser
Jim Wyman
Lloyd Nelson
Wilson, Sonar Man
HR
Harry Raven
The Captain
MC
Milt Collion
Hank
LH
Lowell Hopkins
Reporter
JH
Jack Haffner
Jimmy, Reporter
RC
Robert Carroll
Narrator