Trivia / Terror from Beneath the Earth

• You Look Familiar:
  • Mike Cook, who plays Dr. Vincent Edwards, previously appeared as Canoe Cop Gustav in The Monster of Phantom Lake and It Came from Another World!.
  • Daniel Sjerven, who plays Stan Johnson, previously appeared as Lt. William Elliot in Cave Women on Mars.
  • Stephanie Mihm, who plays Rosemary Bennett, also played The High Priestess of The Zil in Cave Women on Mars.
  • Justen Overlander, who played Jonathan in The Monster of Phantom Lake plays Sheriff Elliot.
  • Michael Kaiser, who had a cameo as a Martian slave in Cave Women on Mars, appears for the first time as Deputy Hayes.

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