Lagoona Blue/cartoon

Lagoona Blue debuted in the cartoon series in the Volume 1 webisode "Jaundice Brothers", which premiered on May 5, 2010. She is voiced by Laura Bailey in the English version of the cartoon.

Webisodes
When Radio KBLOOD announces a contest of which the prize is that the Jaundice Brothers come play at the winner's school's homecoming dance, Lagoona helps Frankie put together a tape to sent in. As luck has it, they win the contest. Lagoona, Draculaura, and Frankie attend Monster High's 1361st Annual Charity Talon Show to root for Clawdeen, who gives a killer performance. Lagoona tries out for the Fear Squad, where she needs to impress the demanding captain: Cleo. Lagoona's Trigular Calcometry 101 class is hosted by a substitute teacher, Lou Zarr, who does not get along with the class. A conflict with Deuce leaves him petrified, upon which Lagoona and the other students consider the class dismissed. Lagoona and her friends organize a double-surprise party for Frankie and Draculaura, who are respectively having their Sweet 16 (days) and Sweet 1600. As part of the organization, Lagoona and the others have to reject invitations by both Frankie and Draculaura for a single-surprise party for the other. While not fun, the double-surprise party makes it all worth it. Lagoona has a crush on Gillington "Gil" Webber, but rather than act, she is too insecure and clueless to talk to him. When she goes into another daydream about Gil, he takes her Clawculus book containing a drawing of the two of them. The sound of the school bell awakens Lagoona from her reverie to find her book missing. Her moment of panic is broken when Gil hands it back to her, along with an invitation to meet at the fountain. Lagoona is one of the people Clawdeen confides to that she hasn't studied for the SAT. Lagoona supports Frankie when she develops a zit on her cheek, though it isn't easy. She tries to quietly share with her friends that she thinks that Gil is cute, but because Frankie carries a mask to hide her zit and thus doesn't hear very well, Draculaura repeats Lagoona's words loud enough for Gil, who's sitting a table away, to hear. There's a school's production of Hamlet coming up and Lagoona tries to land a role. Her frog orchestra, however, is not a success. Mr. Hackington wants the class to dissect frogs, but Lagoona is horrified by this idea. She gets Frankie to cause a distraction so she can make off with the frogs. She finds them a new home in the girls' bathroom.

It is both Friday the 13th and Halloween, a rare occurrence that spells bad luck galore until three o'clock. Lagoona and her friends panic, but Cleo assures them that her amulet will protect them. However, Ghoulia's carrying the amulet and she just walked off. The girls chase after her to be safe, only to find her use the amulet to get to the big clock and adjust the time to three o'clock. Lagoona and Frankie attend the Mad Science Fair, where they find Cleo to have stolen Ghoulia's project. They try to get her to get it back, but Ghoulia declines. Cleo wins the fair and claims the 'throne', which actually is Lagoona's project: a rehydration chamber. Lagoona dunks Cleo, then hands Ghoulia the remote of the rehydration chamber. When Frankie's friends discover she's never seen a movie, they promptly take her to the auditorium to watch the entire TwiHard series. In preparing for the movie session, they overtax the room's electricity net. To solve this, the group hooks up the equipment to Frankie, allowing the movie session to go through but Frankie not to watch anything. Clawdeen tells Lagoona about the upcoming track meet. Heath Burns challenges Clawdeen to two laps on the track, with the loser having to clean the Pit of Horror. Since it's full moon, Clawdeen wins with ease and she, Lagoona, and Draculaura come to laugh at Heath during cleaning duty. Draculaura has a chance to meet her perfect guy, but she has to get into contact with him before school's out. Lagoona attempts to stop him by siccing her frogs on him, but he just steps over them. Cleo utilizes her mind-control idol more and more, despite Lagoona's concern. Lagoona partners up with Gil to take care of an egg for a whole week as an assignment for Mr. Hackington's class. Hackington, however, suggests they switch partners because "everyone knows that sea monsters are bad parents." Angered, Lagoona and Gil vow to be the best caretakers of the class. A week later, their egg is the only one that hatches. Lagoona attends a sleepover at Clawdeen's home. In regards to an essay, Lagoona is asked to contact her parents so the teacher can talk with them. She is certain she's messed up her work, so her friends try to help her by dressing Slo Mo up as her aunt Lantic and get him to talk to the teacher. Lagoona is mortified when she learns of the plan, but relieved when it turns out the parent-teacher conference is about how brilliant her essay is.

TV specials
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Webisodes
Lagoona is discussing makeup with Clawdeen and Draculaura in the hallway until Frankie drops by. They skeptically ask her about the Fear Squad, which Frankie asserts is doing well. Lagoona has been made captain of the Swim Team, which is why she has to turn down membership of the Fear Squad. Lagoona fulfills her Swim Captain duties at the Spirit Rally and later hangs out with the Fear Squad. Lagoona consoles the Fear Squad when it seems their chances of getting into Gloom Beach are over. The Fear Squad's video has barely gotten any hits, so the team and Lagoona try to promote it. With Ghoulia's help, they manage to lure in a big audience and reach 999,999 hits. However, FrightTube chooses that moment to crash. The Fear Squad and Lagoona anxiously look on as Ghoulia tries to do something about the crash. Despite her best efforts, the clock strikes 3:00 PM before she succeeds. Cleo tearfully thanks her friends for all they've done, but the mood is promptly improved when Deuce delivers the news that FrightTube crashed because of all the traffic to their video. Rather than a million hits, they've got twn million hits. Their Gloom Beach invitation follows soon after. As many students do, Lagoona goes to spend her Spring Break at Gloom Beach. During the ride, she has a dream of rescuing Gil from suffocating. Lagoona participates in a game of water polo. Lagoona invites Gil for another game of water polo, but he dejectedly refuses. Lagoona pushes for a reason, and he admits there's a problem and that telling her would hurt her feelings. Gil confesses to Lagoona that his parents object to him hanging out with a salt water monster and that he doesn't know if he should go against their wish. Lagoona is left crying, though recovers by the evening to root for her friends at the Gloom Beach competition. Gil tries to talk to Lagoona, but she refuses to listen if he is not willing to stand up for his own beliefs.

Special webisodes
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TV specials
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Webisodes
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Special webisodes
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TV specials
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