 | Kate Capshaw als Andie |
 | Lea Thompson als Kathryn |
 | Kelly Preston als Tish |
 | Larry B. Scott als Rudy |
 | Joaquin Phoenix als Max |
 | Tate Donovan als Kevin |
 | Tom Skerritt als Zack |
 | Barry Primus als Brennan |
 | Terry O'Quinn als Launch Director |
 | Mitchell Anderson als Banning |
 | Scott Coffey als Gardener |
 | Daryl Keith Roach als NASA #1 |
 | Peter Scranton als NASA #2 |
| Hollye Rebecca Suggs als Young Andie |
| Terry White als NASA #3 |
| Susan Becton als Senior Counselor |
| D. Ben Casey als Rudy's Father |
| Kathy Hanson als Girl |
| Ron Harris als Tom the Technician |
| Scott Holcomb als Hideo Takamini |
 | Kevin Gage als Counselor #2 |
| Saundra McGuire als Rudy's Mother |
| Bill Phillips als Kathryn's Father |
| Jon Steigman als Bully in Dorm |
| Adrian Wells als Rudy's Brother |
 | Frank Welker als Special Vocal Effects |
 | Pamela Adlon als Girl in Launch Control Gallery (uncredited) |
| Lori Randolph als Camper (uncredited) |
| Harry Winer | Director |
| Clifford Green | Screenplay |
| Casey T. Mitchell | Screenplay |
| Mike Fenton | Casting |
| Jane Feinberg | Casting |
| David Salven | Associate Producer |
| Patricia Norris | Costume Design |
| John W. Wheeler | Editor |
| Richard Macdonald | Production Design |
| William A. Fraker | Director of Photography |
| Leonard Goldberg | Executive Producer |
| John Williams | Original Music Composer |
| Larry B. Williams | Story |
| Patrick Bailey | Producer |
| Patrick Bailey | Story |
| James Globus | Still Photographer |
| Ron Phillips | Still Photographer |
| Ray Quiroz | Script Supervisor |
| Richard C. Goddard | Set Decoration |
| David Salven | Production Manager |
| Walter Coblenz | Producer |
| Sal Sommatino | Property Master |
| Beth Bergeron | ADR Supervisor |
| Solange S. Schwalbe | Foley Supervisor |
| John Leveque | Supervising Sound Editor |
| David MacMillan | Production Sound Mixer |
| Steve Bowerman | Boom Operator |
| Donald O. Mitchell | Sound Re-Recording Mixer |
| Kevin O'Connell | Sound Re-Recording Mixer |
| Tom Gerard | Sound Re-Recording Mixer |
| Cliff Latimer | ADR Editor |
| Steve Rice | ADR Editor |
| Chuck Gaspar | Special Effects Coordinator |
| Gerald Boatright | Gaffer |
| Jack Cooperman | Second Unit Director of Photography |
| Robert C. Jessup | Second Unit Director of Photography |
| Tena Psyche Yatroussis | Second Assistant Director |
| James Simons | First Assistant Director |
| Donna Keegan | Stunt Coordinator |
