A brilliant meteorologist returns to his hometown in Oklahoma to try to stop the biggest tornado ever.
| Actor | Role |
|---|---|
 Joe LandoPeter Jensen | Peter Jensen |
 Nicole EggertJulia Merrow | Julia Merrow |
 Erica DuranceKara Jensen | Kara Jensen |
 Peter Graham-GaudreauRobert Booker | Robert Booker |
 Garwin SanfordStan Chasen | Stan Chasen |
 Gerard PlunkettDr. Raymond Ardmore | Dr. Raymond Ardmore |
 Genevieve BuechnerYoung Kara | Young Kara |
 Lauren K. RobekMary Jensen | Mary Jensen |
 Rachel HaywardKaren Sowells | Karen Sowells |
 Kymberly SheppardStunt EDAC Worker | Stunt EDAC Worker |
 Jan D'ArcyMargaret Harrington | Margaret Harrington |
| JJillian Marie HubertSamantha | Samantha |
| CCarrie RitchieMiss Potion | Miss Potion |
 Owen WalstromStunt Suspect | Stunt Suspect |
| BBrad TurnerDr. John Tedesco | Dr. John Tedesco |
 Peter BryantDavid Lincoln | David Lincoln |
| AAdam MurphyJerry | Jerry |
 James PurcellLou | Lou |
| RReginald HamptonNews Anchor | News Anchor |
 David Richmond-PeckChet | Chet |
 Alexander MandraStunt Lab Worker | Stunt Lab Worker |
| CCeleste White SteeleLab Technician (uncredited) | Lab Technician (uncredited) |