| Deadly seismic activities that peaked with a 10.5 earthquake and devastated the West Coast have altered the core structure of the earth and now threaten to jeopardize North America and the Western hemisphere. In a desperate bid to save lives - and the country - President Hollister calls once again upon one of the nation's top seismologists, controversial scientist Dr. Samantha Hill and her supervisor and former boyfriend Dr. Jordan Fisher, to interpret the latest onslaught of quakes. |
| Name | Character | Episodes |
|---|---|---|
| Melissa Sue Anderson | Megan Hollister | 2 |
| Maurizio Terrazzano | Gonzalez | 2 |
| Peter Outerbridge | Alec Becker | 2 |
| Beau Bridges | Paul Hollister | 2 |
| Kim Delaney | Dr. Samantha Hill | 2 |
| Meaghan Rath | Rachel | 2 |
| Oliver Hudson | Will Malloy | 2 |
| Carly Pope | Laura Malloy | 2 |
| David Cubitt | Dr. Jordan Fisher | 2 |
| Carlos Bernard | Dr. Miguel Garcia | 2 |
| Dean Cain | Brad Malloy | 2 |
| Frank Langella | Dr. Earl Hill | 2 |
| Francis X. McCarthy | Al Roberts | 2 |
| Barbara Eve Harris | Stacy Warner | 2 |
| Garcelle Beauvais | Natalie Warner | 2 |
| John Cassini | Sean Morris | 2 |
| Tamara Hope | Amy Hollister | 2 |
| Cecile Cristobal | Allison | 2 |
| David Schaap | Jim | 2 |
| Glenda Braganza | Gina Green | 2 |
| Russell Yuen | Ian | 2 |