General
- Adaptation Name Change: Only Murphy & Sparks retain their names from 2020 for the most part (Murphy's first and nickname were changed from Michael "Mike" to Hazel "Hank" and the name of Sparks' rank changed).
- Adaptation Personality Change: None of the personality traits from Sealab 2020 can apply to these characters.
- Unless you count "47211".
- They Killed Kenny Again: Every episode or so, Sealab gets destroyed. Come the next episode, everything's back to normal.
- Unsympathetic Comedy Protagonist: Everyone except Quinn. And even he has his moments.
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Main Characters
Captain Hazel "Hank" Murphy
"My nipples are hard just thinking about it."
Voiced by: Harry Goz
The leader of Sealab, but often acts like an extremely immature, borderline psychopathic child. When his voice actor dies, the character goes into space to fight in the Great Spice Wars.- Beware the Silly Ones: He may be a Cloudcuckoolander but a lot of people have learned the hard way that this doesn't mean he's harmless. In fact his off-kilter mindset makes him quite a threat because getting him off whatever craziness he thinks would be fun is borderline impossible.
- Cloudcuckoolander: Just ask Bucket-head Wendy.
- Friend to All Living Things: A few episodes show that Murphy has an affinity for animals and even non-humans. Most prominently in "All That Jazz" where he befriends a scorpion, "Hail, Squishface" where he pretty much adopts the Gloops, and "Bizarro" where he takes a liking to Bizarro Quinn.
- The Hero: (The original)
- Manchild: Has the emotional and mental maturity of someone a minuscule fraction of his age.
- Psychopathic Manchild: Frequently inflicts massive destruction because it seems like a good idea at the time.
Captain Bellerophon "Tornado" Shanks
"Breakdown!"
Voiced by: Michael Goz
A retired football coach, he comes to Sealab as Captain Murphy's replacement after he goes off to fight in the Great Spice Wars.- Aerith and Bob: With a name like Bellerophon, that's a given. Though he explains that he and his several dead brothers are all named after characters in Greek mythology.
- Fan Hater: Periodically mocks anime fans.
- The Hero: (The replacement)
- Ooh, Me Accent's Slipping: Originally had a Southern accent, but later drops it because it made people think he was gay.
- Sixth Ranger
- Suspiciously Similar Substitute: He's more self-aware than Murphy, but otherwise fits his roles in the story.
Jodene Sparks (Commander)
"I want to start a NUCLEAR WAR!"
Voiced by: Bill Lobley
- Affably Evil: Runs a supervillian operation on the side. But then again..
- Deadpan Snarker: Sparks invokes this usually when he's around Captain Murphy or many of the other crew members.
- Evil Cripple: Subverted. He's incredibly greedy, and may or may not run a supervillain operation. But, while he initially claims to be crippled, he later admits that he can walk just fine, he's just lazy.
- The Lancer: When he's not trying to kill or ruin Captain Murphy, he serves as Murphy's right-hand man.
- Last-Name Basis: Really, if one didn't pause at just the right moment in "All That Jazz", they never would even know Sparks's first name.
- Manipulative Bastard: Oftentimes.Marco: Sparks, any idea what happened to [Hank's] happy-cake oven thing?Sparks: Uhh, yeah. I stole it and dumped it out in the ocean.Marco: What!? Why did you do that?!Sparks: Just part of a larger plan to drive him insane. Oh, I also have the orphans wet his bed while he's asleep.
- Only Sane Man: He's fairly smart but too lazy and greedy to be a responsible employee; but is Depending on the Writer on this.
- Token Evil Teammate: If the crew as a whole is engaging in questionable behavior it's usually out of stupidity or obliviousness. If Sparks joins in he's the only one doing so with full awareness and out of selfishness.
Debbie DuPree (Lieutenant Commander)
"Oh, whatever!"
Voiced by: Kate Miller
- Alliterative Name: Both of her names start with D.
- The Fundamentalist: In season 4 she adopts this trait for one episode, and it got brought up again briefly in later ones. Could have been considered Character Development if it hadn't happened right at the end of the series.
- Has a Type: It's been implied that she has a thing for black men. "Chickmate" also has her declaring that Nerds Are Sexy. Little surprise she chooses to date Quinn.
- My Biological Clock Is Ticking: "Chickmate" centered about hers going off, but at the end she decides she didn't need a baby because everyone else is a Manchild anyway.
- One-Steve Limit: Shares a name with Sealab's African American schoolteacher Debbie, but she is known as "Black Debbie", at least by Stormy.
- Really Gets Around: To the point one of her nicknames is "the whore".
Derek "Stormy" Waters (Lieutenant Commander)
"You said 'booby'!"
Voiced by: Ellis Henican
- Abhorrent Admirer: To Debbie, who makes little secret of how much she dislikes him and his advances.
- Back to School: Stormy never apparently got past fifth grade and is seen in class with fourth graders.
- Casanova Wannabe: He likes to think he's good with the ladies but his track record proves otherwise.
- The Ditz: He is pretty, but also pretty stupid.
- The Friend Nobody Likes: A bit more subtle than most examples but most the crew make it clear they can barely stand him. They'll exclude him from social gatherings, will happily insult him right to his face and occasionally show a willingness to physically attack him if he annoys them too much. He's a Proximity example because as a member of the crew they can't just avoid him. Quinn is by and large the only one who even remotely tries to be nice to Stormy and it's clear in some cases that he's doing so out of supervision (Stormy is extraordinarily stupid and reckless, which makes him just as likely to maim himself as he is to hurt anyone around him). "Brainswitch" has Quinn outright telling him that no one else will work with him.
- Pretty Fly for a White Guy: Tried to flash a gang sign to Black Debbie, but no one was impressed.
Dr. Quentin Q. Quinn (Lieutenant Commander)
"I have 5 Ph.D's and a genius grant. I have no peers."
Voiced by: Brett Butler
- The Alcoholic: Some episodes show that Quinn is a pretty heavy drinker.
- Alliterative Name: All three of his names start with Q.
- Being Good Sucks: A few episodes show that Quinn is bitterly aware that trying to be the lone voice of reason and virtue is never going to work out for him.
- Ignored Expert: He's the one character in the show that actually thinks before he acts, but nobody listens to him, even if it would prevent mass death and destruction.
- Insufferable Genius: Downplayed but Quinn isn't above boasting about his intellect and makes no secret of how idiotic he finds his associates. He doesn't really look down on anyone for not being as smart as he is but he does have a bit of an ego about his genius.
- Last-Name Basis: Always referred to as Quinn. His first name's only seen on a computer monitor in "All That Jazz" and on his insurance policy in "The Policy".
- Not So Above It All: Even in season 1 he could be just as nutty as the rest of the crew.
- Omnidisciplinary Scientist: Has five Ph.Ds.
- Only Sane Man: Most level headed out of the Sealab crew, but Depending on the Writer.
- Robotic Reveal: Outs himself as a Full-Conversion Cyborg to shut down the rest of the crew's inane discussion about whether they'd put their brains in robot bodies.
- The Smart Guy: Has an IQ of 260.
- Surrounded by Idiots: He certainly thinks so (not that you can blame him.) He also tends to get paired up with Stormy often, the least intelligent member of the crew.
- Took a Level in Jerkass: Quinn's status as the Only Sane Man varies Depending on the Writer but he's usually the most principled of the crew. The final season had him as far more consistently callous and abrasive.
Marco Rodrigo Diaz de Vivar Gabriel Garcia Marquez (Lieutenant Commander)
"Time for a shot of Vitamin M!"
Voiced by: Erik Estrada
- Achievements in Ignorance: At one point manages to sing an entire duet with Debbie in Spanish...or at least he thought it was Spanish, until Debbie tells him it was actually Portuguese.
- Bestiality Is Depraved: He had sex with a female shark, leading to one of the few running storylines on the show involving his Half-Human Hybrid son Sharko.
- Latin Lover: What he thinks he is.
- Older Than They Look: He's 80 according to "Butchslap".
- Overly Long Name: He has seven names.
Minor Characters
Hesh Hepplewhite (Lieutenant)
"Hesh wants some sex!"
Voiced by: MC Chris
- Alliterative Name: Both of his names start with "He" sounds.
- Author Avatar: He's essentially an animated version of his voice actor, MC Chris, one of the shows creators.
- Body Horror: When he became 'Monster Hesh' after trying to retrieve a golf ball from the reactor core.
- Guest Star: Voiced by MC Chris.
- Sixth Ranger: Not one of the main characters, but has a fairly consistent appearance record.
- Streetwalker: Hinted to have been one in "Dearly Beloved Seed", as he fell 'off the wagon' and prostituted himself to a man. The original version of the episode made it clear he had been, as that was how he and Debbie met.
- Third-Person Person: HESH WANTS SOME SEX!
- Wholesome Crossdresser: Ends up in girl's clothes more and more often as the series progresses.
- A Wild Rapper Appears!: Often Hesh's role in an episode.
Debbie Allison Love (Lieutenant)
"Listen fatty! I done told you once! You can either hold it, or you can just pee in that wetsuit!"
Voiced by: Angela Elayne Gibbs
- As Herself: In "Return To Oblivion" Debbie Love is apparently playing herself, as seen in the Chunk opening credits.
- Ascended Extra: She starts getting more screentime at about the time Murphy left the show.
- One-Steve Limit: Shares a name with Debbie, but is known as Black Debbie. This causes confusion for Stormy.
- Passionate Sports Girl: Was a star quarterback, and even won the Heisman Trophy, much to Shanks's delight.
Dr. Ilad Virjay (Unknown Rank)
"Do I not rival Ronnie James Dio in my rock ability?"
Voiced by: Adam Reed
- Ascended Extra: Right about the time Murphy left the show he started showing up in more episodes.
- Funny Foreigner: Has an Indian accent and is the doctor of the lab.
- Hidden Depths:
- Leads a rockabilly band called the Mahatmamas
- Is knowledgeable in Alvisism.
- Morally Ambiguous Doctorate: It's not even clear just what his degree is in, and there have been plenty of times where he violated the Hippocratic Oath out of apathy.
Dolphin Boy (Lieutenant Jr. Grade)
*dolphin chatter*
A boy that wanders around Sealab, but speaks in chirps.- The Chew Toy: By the crew.
- The Scrappy: In-Universe, he is not well liked around Sealab.
- Tagalong Kid
- The Unintelligible: Only speaks in chirps.
