Also Known As:
- Les insectes de feu
- Bug insetto di fuoco
- Chrzaszcz
- Det får inte vara sant
- El bicho
- Feuerkäfer
- Fterotos efialtis
- Invasion Infernal
- Nilviäiset
- Skalbaggarna
- The Hephaestus Plague
- Jeannot Szwarc
- William Castle
- Thomas Page novel The Hephaestus Plague
- Bradford Dillman ... Prof. James Parmiter
- Joanna Miles ... Carrie Parmiter
- Richard Gilliland ... Gerald Metbaum
- Jamie Smith-Jackson ... Norma Tacker
- Alan Fudge ... Prof. Mark Ross
- Jesse Vint ... Tom Tacker
- Patty McCormack ... Sylvia Ross
- Brendan Dillon ... Charlie
- Frederic Downs ... Henry Tacker
- James Greene ... Reverend Kern
- Jim Poyner ... Kenny Tacker
- Sam Jarvis ... Taxi Driver
- Bard Stevens ... Security Guard
- William Castle ...
- Karoly Fogassy ... Preacher at Funeral