Main characters of seaQuest DSV season 1

Jonathan Devin Ford
First appearance	"To Be or Not to Be" (09/12/1993)
Last appearance	"Weapons of War" (09/06/1996)
Portrayed by	Don Franklin
Information
Occupation	Executive Officer in the Navy
Title	Commander
Nationality	American

Katherine Hitchcock
First appearance	"To Be or Not to Be" (09/12/1993)
Last appearance	"Higher Power" (05/22/1994)
Created by	Rockne S. O'Bannon
Portrayed by	Stacy Haiduk
Information
Gender	Female
Occupation	Chief Engineer of the seaQuest DSV 4600
Title	Lieutenant Commander
Spouse(s)	Benjamin Krieg (divorced)
Nationality	American

Ben Krieg
First appearance	"To Be or Not to Be" (09/12/1993)
Last appearance	"In the Company of Ice and Profit" (09/27/1995)
Portrayed by	John D'Aquino
Information
Gender	Male
Occupation	Supply and morale officer
Title	Lieutenant
Spouse(s)	Katherine Hitchcock (divorced)
Nationality	American

Tim O'Neill
First appearance	"To Be or Not to Be" (09/12/1993)
Last appearance	"Weapons of War" (06/09/1996)
Created by	Rockne S. O'Bannon
Portrayed by	Ted Raimi
Information
Gender	Male
Occupation	Communications officer of the seaQuest DSV 4600
Title	Lieutenant JG
Religion	Catholic
Nationality	American

Manilow Crocker
First appearance	"To Be or Not to Be" (09/12/1993)
Last appearance	"Higher Power" (05/22/1994)
Created by	Rockne S. O'Bannon
Portrayed by	Royce D. Applegate
Information
Gender	Male
Occupation	Chief of Security for the seaQuest DSV 4600
Title	Senior Chief Petty Officer
Spouse(s)	Helen Crocker (divorced)
Nationality	American

Miguel Ortiz
First appearance	"To Be or Not to Be" (09/12/1993)
Last appearance	"Splashdown" (05/21/1995)
Portrayed by	Marco Sanchez
Information
Gender	Male
Occupation	Head Sensor Operator of the seaQuest DSV 4600
Title	Chief Petty Officer, Senior Chief Petty Officer
Nationality	Cuban

Darwin
First appearance	"To Be or Not to Be" (09/12/1993)
Information
Species	Bottlenose Dolphin
Gender	Male

This is the complete list of the main characters of seaQuest DSV season 1. The series went through significant cast changes after every season it was on the air. This list contains only those characters that were given credit in the main titles of the first season (therefore, does not contain characters such as Admiral Noyce (which is located at List of recurring characters on seaQuest DSV) or Lieutenant James Brody (which is located at Main characters of seaQuest DSV season 2).

Ford comes from a very financially well off family, his father owning "Ford Freeport: Aquacultural Engineering", one of the largest undersea farming companies in the world. He had a bad relationship with his father and brother. In 2022, an undersea mining operation generated a dramatic rise in the temperature of the South Atlantic. A deinosuchus (gigantic prehistoric crocodile) thawed out and was threatening the local ecosystem and the lives of the local people. With the help of his family, Jonathan stopped the creature. With the lives of the local people at stake, the Fords were forced to settle their differences and reconcile. Ford's father decided to take a year off from work and give Jonathan's younger brother Ben the run of the company. His mother is deceased.

Part of the original seaQuest's crew under Captain Marilyn Stark (2015-2017), Ford was forced to relieve her of command when she disobeyed orders and attempted to attack several other submarines after being ordered to stand down. For 13 months after this incident Commander Ford oversaw a major refit of the seaQuest to have the ship generally geared more towards scientific exploration/research and peacekeeping missions. In 2018, after the refit was complete, Admiral William Noyce was trying to convince retired Captain Nathan Bridger, the subs original designer, to take command and ordered Ford to act arrogant, cowardly and generally unfit for command in an effort to get Bridger to stay on board. Despite the ploy not working Bridger decided to stay on board after defeating Stark during her attempt at revenge.

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