Characters in Deep Six

Dirk Pitt

Also in The Mediterranean Caper, Iceberg, Raise the Titanic!, Vixen 03, Pacific Vortex!, Cyclops, Treasure, Dragon, Sahara, Inca Gold

Min Koryo Bougainville

Ruthless matriarch of Bougainville Maritime Lines, who conspires with the Soviets to kidnap and mind-control the President.

Lee Tong Bougainville

Min Koryo's grandson, the mastermind running Bougainville Maritime's black-ops side of the kidnapping conspiracy.

Al Giordino

Pitt's close friend and NUMA colleague, assisting throughout the investigation.

Also in Cyclops, Treasure, Arctic Drift, Odessa Sea

Loren Smith

Congresswoman and Pitt's love interest, who becomes a target of the kidnapping plot.

Sal Casio

A private investigator whose daughter died aboard the ship years earlier; joins Pitt to pursue those responsible.