List of seaQuest characters

This is the complete list of the characters of seaQuest DSV, renamed seaQuest 2032 during its third and final season. The series went through significant cast changes after every season it was on the air.

Captain Nathan Hale Bridger (Roy Scheider; main seasons 1 & 2, recurring season 3) is the commanding officer of both UEO submarines named seaQuest DSV and the designer of the boats in the show's first two seasons. Scheider became displeased with the direction of the series during the second season, as well as the "episodic" nature of the series (he believed that the show should contain long-running story and character arcs) and chose to exit the series at the end of the second season. For season 3, he was replaced by actor Michael Ironside, who portrayed Captain Oliver Hudson, although he continued to appearas a guest in season 3. "Good Soldiers", which was the character's last appearance, originally did not include Bridger at all; Scheider's character was written into the script in order to fulfill contractual obligations.

Dr. Kristin Westphalen (Stephanie Beacham; season 1) was a Physical oceanography and the Chief Medical Officer of the seaQuest and leader of the science team aboard the ship. Before joining seaQuest, Dr. Westphalen had attempted to contact Nathan Bridger in the name of scientific research, however, she was informed that he was incommunicado. The two of them did not meet on the best of terms as Bridger, still in civilian clothing, snickered at her diatribe against Commander Ford, leading her to accuse him of being a stowaway. The two gradually formed a working relationship as Bridger assumed command of the vessel and put emphasis on the scientific mission of the seaQuest over the military one.

Lucas Wolenczak (Jonathan Brandis) was born in Danbury, Connecticut, US and afterwards his family moved to Buffalo. Lucas was a highly intelligent teenager who graduated magna-cum-laude with a degree in Applied Science of Artificial Intelligence from Stanford University, achieving a GPA that has been unbroken. When his parents divorced, Lucas' father, Dr. Wolenczak, one of the world's most valued scientists, was able to pull some strings allowing Lucas to serve aboard the seaQuest DSV as part of the boat's scientific contingent. After the events with the space war and Captain Bridger leaving to be with his grandson, Lucas was not welcome as a civilian on the SeaQuest under the new Captain so he chose to enlist in the Navy to become a UEO officer. He is referred to as Ensign (O1 rank) throughout the final season of the show.

Commander Jonathan Devin Ford (Don Franklin) 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 a sharp raise in the temperature of the water in the South Atlantic, caused by an undersea mining operation, a Deinosuchus (gigantic prehistoric crocodile) thawed out and was threatening the local ecosystem and the life of the local people. With the help of his family they stopped the creature and settled their differences. 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.

The character of Ford was originally supposed to have a far different background, originally having him been a poor kid from Chicago who joined the navy to get away from his gang life after witnessing the death of his older brother. Since this was never established in the first year (except for the novelization of the pilot episode and non canon sources such as the others novels and an issue of the comic) it was disregarded for the rest of the series.

Lieutenant Commander Katherine Hitchcock (Stacy Haiduk; season 1) was the Chief Engineer of the seaQuest DSV 4600 following her refit in 2018. While at the naval academy, she, along with Benjamin Krieg, were top of their class, and were eventually wed. However, the marriage only lasted a year. Being Chief Engineer, Hitchcock was also third in command aboard the seaQuest and was placed in command in several occasions, such as the Liberté space station incident where Commander Ford had been infected with an unknown virus and was unable to perform his duties.

Lieutenant Benjamin Krieg (John D'Aquino; main season 1, guest season 3) served as seaQuest`s supply and morale officer. He had previously attended the naval academy with Captain Bridger's son Robert and with Katherine Hitchcock, whom he was later wed to for a year. While at the academy, he painted the homecoming mule pink, something that Captain Bridger later found amusing. Krieg had aspirations of a command at sea, but, he never was able to fulfill that dream. Krieg was involved in a few minor transgressions during his tour of duty, such as attempting to extort an Arctic research outpost by selling them thermal underwear at an inflated price, as well as sneaking two pounds of outlawed ground beef aboard the boat with the intention of making a real cheeseburger.