A disgruntled ex-CIA operative, his assistant and their assembled group of terrorists seize a battleship with nuclear blackmail in mind. They've planned for every contingency but ignore the ship's cook, former Navy SEAL Casey Ryback—an error that could be fatal.
Unfortunately the movie Under Siege is not yet available on HBO Max.
| Directing | Andrew Davis | Director |
| Writing | J.F. Lawton | Screenplay |
| Production | Gary W. Goldstein | Executive Producer |
| Production | J.F. Lawton | Executive Producer |
| Production | Arnon Milchan | Producer |
| Production | Steven Reuther | Producer |
| Production | Steven Seagal | Producer |
| Directing | Thomas J. Mack | First Assistant Director |
| Directing | David Kelley | Second Assistant Director |
| Art | Alan Manzer | Set Designer |
| Camera | Frank Miller | "A" Camera Operator |
| Camera | Stephen St. John | "B" Camera Operator |
| Camera | Stephen St. John | Steadicam Operator |
| Camera | Frank M. Holgate | Aerial Camera |
| Camera | Zoran Veselić | First Assistant Camera |
| Crew | Conrad E. Palmisano | Stunt Coordinator |
| Sound | Scott D. Smith | Production Sound Mixer |
| Sound | Dale R. Janus | Boom Operator |
| Lighting | Eugene F. Crededio | Chief Lighting Technician |
| Lighting | Bob E. Krattiger | Chief Lighting Technician |
| Camera | Gaylin P. Schultz | Key Grip |
| Camera | Scott Floren | Key Grip |
| Camera | Audie Aragon | Best Boy Grip |
| Camera | Brad Rea | Dolly Grip |
| Costume & Make-Up | Laurie Riley | Costume Supervisor |
| Art | Sam Moore | Property Master |
| Costume & Make-Up | Jef Simons | Makeup Supervisor |
| Costume & Make-Up | Gandhi Bob Arrollo | Makeup Artist |
| Costume & Make-Up | Shanon Ely | Key Hair Stylist |
| Directing | Dru Anne Carlson | Script Supervisor |
| Production | Curtis Collins | Location Manager |
| Crew | Carol Dantuono | Post Production Supervisor |
| Sound | John Leveque | Supervising Sound Editor |
| Sound | Bruce Stambler | Supervising Sound Editor |
| Production | Ricki L. Stein | Production Accountant |
| Art | Maggie Martin | Art Department Coordinator |
| Art | Clarence Lynn Price | Construction Coordinator |
| Crew | Craig Pinkard | Transportation Coordinator |
| Crew | Michael Battaglia | Unit Publicist |
| Camera | Michael P. Weinstein | Still Photographer |
| Sound | Sharon Boyle | Music Consultant |
| Sound | Sally Boldt | Music Editor |
| Sound | Carlton Kaller | Music Editor |
| Sound | Becky Sullivan | Supervising ADR Editor |
| Sound | Mary Jo Lang | Foley Mixer |
| Editing | Brian Ralph | Negative Cutter |
| Editing | Phil Downey | Color Timer |
| Editing | Bob Putynkowski | Color Timer |
| Directing | Conrad E. Palmisano | Second Unit Director |
| Camera | Gary Holt | Second Unit Director of Photography |
| Sound | Michele Perrone | ADR Editor |
| Sound | Holly Huckins | ADR Editor |
| Sound | Richard E. Yawn | Sound Editor |
| Sound | Donald L. Warner Jr. | Sound Editor |
| Sound | John Kwiatkowski | Sound Editor |
| Sound | Anthony Milch | Sound Editor |
| Sound | Hector C. Gika | Sound Editor |
| Sound | Robert Bradshaw | Sound Editor |
| Sound | Rocky Moriana Jr. | Sound Editor |
| Sound | Glenn Hoskinson | Sound Editor |
| Sound | Shawn Sykora | Sound Editor |
| Sound | Richard Burton | Sound Editor |
| Sound | Kimberly Lowe Voigt | Sound Editor |
| Sound | Bruce Fortune | Sound Editor |
| Sound | Kim Secrist | Sound Editor |
| Sound | Jay Nierenberg | Sound Editor |
| Sound | Frank Kniest | Sound Editor |
| Sound | John Roesch | Foley Artist |
| Sound | Alicia Stevenson | Foley Artist |
| Sound | Roberta Alstadter | Foley Recordist |
| Sound | Christine Danelski | Foley Editor |
| Sound | Steve Schwalbe | Foley Editor |
| Sound | Pamela Bentkowski | Foley Editor |
| Sound | Donald O. Mitchell | Sound Re-Recording Mixer |
| Sound | Jeffrey J. Haboush | Sound Re-Recording Mixer |
| Sound | Frank A. Montaño | Sound Re-Recording Mixer |
| Sound | Rick Hart | Sound Re-Recording Mixer |
| Camera | Frank Tidy | Director of Photography |
| Costume & Make-Up | Richard Bruno | Costume Design |
| Sound | Gary Chang | Original Music Composer |
| Editing | Dennis Virkler | Editor |
| Editing | Dov Hoenig | Editor |
| Editing | Robert A. Ferretti | Editor |
| Editing | Don Brochu | Editor |
| Production | Pamela Basker | Casting |
| Art | Bill Kenney | Production Design |
| Production | P.M. Scott | Unit Production Manager |
| Art | William Hiney | Art Direction |
| Art | Rick Gentz | Set Decoration |
| Production | Peter Macgregor-Scott | Co-Producer |
| Production | Jack B. Bernstein | Co-Producer |
| Crew | Thomas L. Fisher | Special Effects Coordinator |
| Crew | Kane Hodder | Stunts |
| Crew | Norman Howell | Stunts |
| Crew | Clifford Happy | Stunt Double |
| Crew | Brian J. Williams | Stunts |
| Crew | Bruce Paul Barbour | Stunt Double |
| Crew | Nils Allen Stewart | Stunts |
| Crew | John Rottger | Stunts |
| Crew | Mark Stefanich | Stunts |
| Crew | Peewee Piemonte | Stunts |
| Crew | Gary Morgan | Stunts |
| Crew | Kevin LaRosa | Stunts |
| Crew | Dean Mumford | Stunts |
| Crew | Jeff Jensen | Stunts |
| Crew | Anderson Martin | Stunts |
| Crew | Tom Harper | Stunts |
| Crew | Dick Hancock | Stunts |
| Crew | Terry Jackson | Stunts |
| Crew | Lance Gilbert | Stunts |
| Crew | James Deeth | Stunts |
| Crew | Greg Wayne Elam | Stunts |
| Crew | Jeffrey J. Dashnaw | Stunt Coordinator |
| Crew | Steve M. Davison | Stunts |
| Crew | Tim Card | Stunts |
| Crew | Richard L. Blackwell | Stunts |
| Crew | Bruce Paul Barbour | Stunts |
| Crew | G. A. Aguilar | Stunts |
| Crew | Michael Adams | Stunts |
| Crew | Dick Ziker | Stunts |
