A smart and serious marine biologist and a fun-loving and laissez-faire dive instructor must team up to save their beloved reef from being destroyed before it’s too late.
| Actor | Role |
|---|---|
 Ansley GordonDr. Isla Waters | Dr. Isla Waters |
 Marc HerrmannLiam Smith | Liam Smith |
 Jennifer BonnerBrooke Waters | Brooke Waters |
 John HardyHank Waters | Hank Waters |
 Andrea ConteMayor Marsha Wade | Mayor Marsha Wade |
| JJovon JacobsCharlie | Charlie |
| SSusan DeanDr. Lynn Maris | Dr. Lynn Maris |
 Terrance MurphyKevin Smith | Kevin Smith |
 Miranda RoldánConnie Jones | Connie Jones |
 Lauren MadiganLana Smith | Lana Smith |