A cross-country airliner, whose passengers include a nuclear physicist, a rocket expert, and a mathematical genius, is drawn beyond radar range by an unknown, unbreakable force.
| Actor | Role |
|---|---|
 Craig HillTom Endicott | Tom Endicott |
 Paula RaymondMarcia Paxton | Marcia Paxton |
 Dayton LummisDr. Karl Morris | Dr. Karl Morris |
 John BryantHank Norton | Hank Norton |
| BBernadette HaleJoan Agnew | Joan Agnew |
 Nancy HaleBarbara Nielsen | Barbara Nielsen |
 Brad TrumbullJack Peters | Jack Peters |
| JJerry JamesRay Hauser | Ray Hauser |
 Harvey StephensWalter Cooper | Walter Cooper |
 Meg WyllieHelen Cooper | Helen Cooper |
| RRoy EngelFloyd Jamison | Floyd Jamison |
 Gregory MortonThe Future-being Judge | The Future-being Judge |
 Addison RichardsThe Future-being Advocate | The Future-being Advocate |
| FFrancis DeSalesGeorge Manson | George Manson |
| JJack MannGarrett | Garrett |
| JJoe HayworthATC Radio Operator | ATC Radio Operator |
| EEd StoddardAirport Official O'Connor | Airport Official O'Connor |
| EEden HartfordMiss Ford, secretary | Miss Ford, secretary |
| CCarl PrinciTV Newscaster | TV Newscaster |
 Leoda RichardsAirline Passenger | Airline Passenger |
| SStephen EllsworthNot listed | Not listed |