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These are the characters from Shinryaku! Ika Musume and tropes that are associated with them.

This page is currently under construction. Any contributions are appreciated.

Ika Musume/Squid Girl Edit

Ika-chan - Squid Girl

 Voiced by: Hisako Kanemoto (Japanese) and Christine Marie Cabanos (English)

The "protagonist" of the series, an anthropomorphic squid-girl who comes ashore to invade the surface world in retaliation for constant human pollution of the seas, only to end up being forced to work as a waitress at the Lemon Beach House restaurant in order to pay for a damaged wall of the restaurant.


  • Alien Hair: Well, not alien in the sense Cindy and her associates think it is, but certainly not human considering a good part of it are tentacles.
  • Anti-Villain: Type IV
  • Applied Phlebotinum: In Seasons 2 episode 2.3 it turns out that Ika Musume can pick up heavy weights with her tentacles because she can manipulate her weight using her bracelets.
  • Badass Adorable: Subverted. The tentacles are indeed very powerful, but how she uses them makes her well less threatening that she could be.
  • Between My Legs: Her introduction shot. The same angle is re-used at the end of the first season.
  • Brilliant but Lazy: She's shown to be extremely good at math, has mastered several skills that have nothing to do with world domination, and of course there's her extremely powerful tentacles. She could at least be a serious threat, if she wasn't so lazy and easily distracted (and of course, if it weren't for Chizuru.)
  • Card-Carrying Villain: Despite technically fighting for a good intention, she chooses to use villainous terms when referring to her "conquest". The truth is that she barely can be called a villain.
  • Combat Tentacles: Very strong and fast, precise abd have a long range.
  • Comically Missing the Point
  • Cold Turkeys Are Everywhere: After she swears off shrimp. They pop up everywhere.
  • Cry Cute: Every time Chizuru intimidates her into obeying her, or whenever a "comrade" of hers (e.g. Takeru in a squid paper-hat and an umbrella) "dies" (Takeru's hat blown away, the umbrella ran over by a truck).
  • Curtains Match the Window: And the tentacles.
  • Cute Clumsy Girl: Without the use of her tentacles she can barely kick a soccer ball.
  • Cute Squid Girl
  • Even the Girls Want Her: Ika is, in an appropriate and friendly way, friends with many kids of either gender, specifically Takeru and Kiyomi's respective groups of friends. Sanae and Cindy, on the other hand...
    • In season 2 episode 9.1, Ika is asked by Risa to join her play as her husband. Minutes later, Eiko, Sanae, and Kiyomi all join in. They have different roles but they share one similar thing: they LOVE Ika Musume. They even take their roles seriously and act as though they are genuinely in love with her.
  • Face Your Fears: In Season 2, Episode 11.3, she overcomes her fear of Chizuru, accidentally ticks her off again, and gets dragged by her to a room while showing NO signs of fear.

  Ika: Oh? About what? (while being dragged by Chizuru to a room)

 Ika: "What's a military?"

Eiko Aizawa Edit

Eiko Aizawa

 Voiced by: Ayumi Fujimura (Japanese) and Heather Pennington (English)

Middle of the Aizawa siblings and manager of the Lemon Beach House, as well as Ika Musume's principal "handler".


  "Pain in the ass bodyguard!"

Chizuru Aizawa Edit

Chizuru Aizawa

 Voiced by: Rie Tanaka (Japanese) and Shelby Lindley (English)

Eldest of the Aizawa siblings.


Takeru Aizawa Edit

Takeru Aizawa

 Voiced by: Miki Ootani (Japanese) and Amanda C. Miller (English)

Youngest of the Aizawa siblings.


  • Anime Hair: There's no way a hair can be that spiky.
  • Cross Dressing Voice: As expected to a voice of a young boy.
  • Cute Shotaro Boy
  • The Generic Guy: Lampshaded when Squid Girl tries to draw the Aizawas using her tentacles (which she explains goes by her mental images of them.) Chizuru gets drawn as an oni, Eiko as a killer robot, and Takeru...is a more photorealistic version of himself.
  • Made of Iron: His very first appearance has him getting thrown around and slammed into the ground by Squid Girl's tentacles, only to get right back up and proclaim "That was so cool!"
  • Not So Above It All: Despite treating Ika like a playmate most of the time, Eiko notices that he's slowly learning to subconsciously control Ika -- which is easy enough, given her immense gullibility.
  • Out of Focus: In Season 2 Episode 10.1, Ika, Eiko, and Chizuru all forget about him while they try to eat as many cuts of meat as they can. Luckily, Chizuru has reserved some cuts (which she intends to eat them herself) for him.

Goro Arashiyama Edit

Goro Arashiyama

 Voiced by: Yuuichi Nakamura (Japanese) and Jason Wishnov (English)

A lifeguard and Eiko's childhood friend, who has his sights for Chizuru.


Sanae Nagatsuki Edit

Sanae - Squid Girl

 Voiced by: Kanae Ito (Japanese) and Xanthe Huynh (English)

Eiko's neighborhood friend who has taken an obsessive liking to Ika.


Cindy Campbell Edit

Cindy Campbell

 Voiced by: Hitomi Nabatame (Japanese) and Laura Post (English)

An American alien researcher who comes to Japan to investigate Ika.


Nagisa Saito Edit

Nagisa - Squid Girl

 Voiced by: Azusa Kataoka (Japanese) and Cristina Valenzuela (English)

A surfer and part-time worker for Lemon Beach House, and perhaps the only person who sees Ika as a genuine threat to humanity.


Ayumi Tokita Edit

Ayumi Tokita

 Voiced by: Ayako Kawasumi (Japanese) and Sarah Williams (English)

Daughter of the manager of Southern Winds, Lemon Beach House's rival restaurant from a neighboring town. She sometimes works part-time at the Lemon Beach House.


  • Antenna Hair
  • Beautiful All Along: Without those creepy "Fake Ika Musume" kigurumi masks her father has her wear.
  • Beware the Nice Ones: After episode 10.2, you better show some manners while talking to her, as her father finds out after she throws him down. Though that one is an accident.
    • She learns self-defense from Chizuru. Yes, that CHIZURU!
  • Defrosting Ice Queen: Her father tells Eiko, Chizuru, and Ika that ever since she started working with them, her sociability has been improved. She's still afraid of men though.
  • Dude Magnet; Thanks to being incredibly pretty.
  • The Faceless: Not exactly with her appearance (she's even actually quite the looker), but she's this personality-wise; as her father told Eiko, she cannot actively interact with people outside her masks.
  • Fridge Horror: Her father tried to trade her to the Lemon Beach House in exchange for the original Ika Musume. Behavior like this is probably why she's so insecure to begin with.
  • Les Yay: Implied with her bashfulness around Eiko.
  • Mad Scientist's Beautiful Daughter: Her father is an inventor of creepy devices revolved around the concept of a Squid Girl's mask. And she, of course, it's very beautiful.
  • Meido: In Chapter 162 (Season 2, Episode 2.2 in the anime), she is this while working at the store and while wearing bladed brass knuckles! Needless to say, male customers are petrified at the unusual sight.
  • Not Good with People: Chapter 210 reveals she can speak normally with Ika, because she doesn't consider her human.
  • The Quiet One: Don't talks a lot, specially without using a mask.
  • Shrinking Violet: Seems afraid to talk to people.

Mr. Tokita Edit

Ayami's father - Squid girl

 Voiced by: Rikiya Koyama (Japanese) and Tony Oliver (English)

Ayumi's father whose first name is unknown. He is the Southern Wind's owner. He is fond of making creepy kigurumi based on Ika.


Harris, Clark and Martin Edit

Three Stooges - Squid Girl

 Voiced by: Seiji Sasaki, Anri Katsu, and Tetsuo Goto (Japanese), and Phineas, Tony Oliver, Jonathan Meza (English)

A trio of American Mad Scientists and MIT graduates who, together with Cindy, investigate Ika.


  • Eagle Land
  • Geek Physiques: Harris is a little skinny, Clark is very skinny, and Martin is fat.
    • When Ika is gone in episode 12.1, they become depressed -- Harris and Clark gain a ton of weight, while Martin loses quite a bit.
  • Gratuitous English: Humorously, a few of their Gratuitous English lines go unaltered in the English dub. "You're a god, man! We are god men!"
  • Mad Scientist: A little unstable and obsessed with aliens.
  • Reed Richards Is Useless: In their zeal to discover Ika's "alien" heritage, they conveniently overlook their other, far more important discoveries: a universal language translator and a cure for cancer. Being that we actually learn this from them, they appear to have some faint awareness of the fact that they're squandering their talents and discoveries
  • Villain Team-Up: While they are not really villainous, the trio and Ayumi's father join forces in Season 2, Episode 11.2 to build a Mecha-Ika Musume. This Mecha-Ika has almost all of the original's powers as well as the ability to speak.

Kiyomi Sakura Edit

Kiyomi Sakura

 Voiced by: Kokoro Kikuchi (Japanese) and Carrie Savage (English)

A middle-school student who Ika befriends after a prank gone wrong.


Tatsuo Isozaki Edit

 Voiced by: Shinzou Miyasaka

Goro's friend and fellow lifeguard who tries to flirt with Ayumi.


Kozue Tanabe Edit

Kozue tanabe2 - Squid Girl

 Voiced by: Akemi Kanda (Japanese) and Erika Harlacher (English)

A gentle girl implied to be an anthropomorphic "tako musume" (octopus girl).


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