Nadia: The Secret of Blue Water

Nadia: The Secret of Blue Water (1990 – 1991)

1990 • 1 season • Animation, Action & Adventure • TV-14

On August 11, 2026

10785th by attention TV show online

1,542.8 Attention Score

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Episode 3 — The Riddle of the Giant Sea Monsters

Season 1 • Nadia: The Secret of Blue Water

Released: 1990-04-27 • Animation/Action & Adventure/Sci-Fi & Fantasy/Drama/Family

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Jean, Nadia, and King are rescued by an American battleship in pursuit of sea monsters, who have apparently been responsible for sinking ships. That night, the battleship is attacked, and Jean, Nadia, and King are thrown overboard....

Where to Stream Episode 3

Season 1 · Episode 3 · Streaming in USA

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Episodes

Episode 1
Girl at the Eiffel Tower
1990-04-13

Episode 2
The Little Fugitive
1990-04-20

Episode 3
The Riddle of the Giant Sea Monsters
1990-04-27

Episode 4
Nautilus, The Fantastic Submarine
1990-05-04

Episode 5
Marie's Island
1990-05-11

Episode 6
Infiltration of the Secret Base
1990-05-18

Episode 7
The Tower of Babel
1990-05-25

Episode 8
Mission to Rescue Nadia
1990-06-01

Episode 9
Nemo's Secret
1990-06-08

Episode 10
A Crowning Performance by the Gratan
1990-06-15

Episode 11
New Recruits for the Nautilus
1990-06-22

Episode 12
Grandis and Her First Love
1990-07-06

Episode 13
Run, Marie, Run!
1990-07-13

Episode 14
The Valley of Dinicthys
1990-07-20

Episode 15
The Nautilus Faces Its Biggest Crisis
1990-07-27

Episode 16
The Mystery of the Lost Continent
1990-08-24

Episode 17
Jean's New Invention
1990-08-31

Episode 18
Nautilus vs. Nautilus
1990-09-07

Episode 19
Nemo's Best Friend
1990-09-14

Episode 20
Jean Makes a Mistake
1990-09-21

Episode 21
Farewell Nautilus
1990-10-26

Episode 22
Electra the Traitor
1990-11-02

Episode 23
Young Drifters
1990-11-09

Episode 24
Lincoln Island
1990-11-16

Episode 25
The First Kiss
1990-11-30

Episode 26
King, the Lonely Lion
1990-12-07

Episode 27
The Island of the Witch
1990-12-14

Episode 28
The Floating Island
1990-12-21

Episode 29
King vs. King
1991-01-11

Episode 30
Labyrinth in the Earth
1991-01-25

Episode 31
Farewell, Red Noah
1991-02-01

Episode 32
Nadia's Love
1991-02-08

Episode 33
King's Rescue
1991-02-15

Episode 34
My Darling Nadia
1991-02-22

Episode 35
The Secret of Blue Water
1991-03-01

Episode 36
The New Nautilus
1991-03-08

Episode 37
Emperor Neo
1991-03-29

Episode 38
To the Sky
1991-04-05

Episode 39
Successor to the Stars
1991-04-12

Information

Episode air date	27.04.1990
Episode runtime	25 min
Episode rating	7.00
Genres	Animation / Action & Adventure / Sci-Fi & Fantasy / Drama / Family
TMDB series rating	7.5
IMDb series rating	7.7
Series status	Ended
Age rating	14+
Country	JP

Cast

Noriko Hidaka
Jean Roque Raltique (voice)

Yoshino Takamori

Yoshino Takamori
Nadia la Arwall (voice)

Toshiharu Sakurai

Toshiharu Sakurai
King / Hanson (voice)

Yuko Mizutani
Marie en Carlsberg (voice)

Kumiko Takizawa

Kumiko Takizawa
Grandis Granva (voice)

Kenyu Horiuchi
Sanson (voice)

Akio Otsuka
Nemo (voice)

Motomu Kiyokawa

Motomu Kiyokawa
Gargoyle (voice)

Kikuko Inoue
Electra (voice)

Chikao Ohtsuka
Giger (voice)

Hiroshi Masuoka

Hiroshi Masuoka
Jean's Uncle (voice)

Hitoshi Takagi
Irion (voice)

Kaneto Shiozawa

Kaneto Shiozawa
Emperor Neo (voice)

Kappei Yamaguchi

Kappei Yamaguchi
Hamahama (voice)

Tamio Ohki
Doctor Woolar (voice)

Teiji Ōmiya
Captain Mayville (voice)

Toshihiko Seki
Fejto (voice)

Tsukasa Itou
Fuzzy (voice)

Koichi Yamadera

Koichi Yamadera
Ayerton (voice)

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