| GGünther Oskar DyhrenfurthSelf - Expedition leader & lecturer, Germany (as Professor Dr. Günter Oskar Dyhrenfurth) | Self - Expedition leader & lecturer, Germany (as Professor Dr. Günter Oskar Dyhrenfurth) |
| HHettie DyrenfurthSelf - Expedition participant, Germany | Self - Expedition participant, Germany |
| HHermann HoerlinSelf - Expedition participant, Germany | Self - Expedition participant, Germany |
| HHelmuth RicherSelf - Expedition participant, Germany (as Dr. Helmuth Richer) | Self - Expedition participant, Germany (as Dr. Helmuth Richer) |
| UUlrich WielandSelf - Expedition participant, Germany | Self - Expedition participant, Germany |
| JJohn HannahSelf - Expedition participant: England | Self - Expedition participant: England |
| GGeorge Wood JohnsonSelf - Expedition participant: England | Self - Expedition participant: England |
| FFrank SmytheSelf - Expedition participant: England | Self - Expedition participant: England |
| EErwin SchneiderSelf - Expedition participant: Austria | Self - Expedition participant: Austria |
| CCharles-Georges DuvanelSelf - Expedition participant: Switzerland | Self - Expedition participant: Switzerland |
| MMarcel KurzSelf - Expedition participant: Switzerland | Self - Expedition participant: Switzerland |
 Lowell ThomasNarrator (USA) | Narrator (USA) |