
Watch S3, EP4: The Whale Blows Rainbows with Fubo for $0 Today
Guppy, an enormous pet whale, is kidnapped by Cuthbert Tuthsum, a butler with ambitions toward evil.
Guppy, an enormous pet whale, is kidnapped by Cuthbert Tuthsum, a butler with ambitions toward evil.
More episodes
Marine Boy
S3, EP6 "Showdown at Sea"When Professor Puddin builds his complex for extracting gold from seawater, the infamous Dr. Al Kemy devises an evil plan.
Marine Boy
S3, EP7 "The Precious Robot"When Professor Fumble invents a robot that makes diamonds out of coal, the evil Mr. Carbona sees his chance to control the world's economy.
Marine Boy
S3, EP8 "Fight for the Rocket"Professor Fumble's greatest invention, a weather observation rocket, is stolen by Lard Greedfat.
Marine Boy
S3, EP9 "Red Menace"An army of red dolphins threatens the ocean depths; their goal is the destruction of Ocean Patrol.
Marine Boy
S3, EP5 "The Great Plankton Menace"Dr. Bulthrod's plane, carrying precious specimens of a rare plankton, is shot down; the plankton escapes into the sea, where it grows and threatens to engulf the entire Earth.
Marine Boy
S3, EP4 "The Whale Blows Rainbows"Guppy, an enormous pet whale, is kidnapped by Cuthbert Tuthsum, a butler with ambitions toward evil.
Marine Boy
S3, EP3 "Ghost of Destruction"Marine Boy faces the greatest challenge of his career in the Ocean Patrol when a ship, the ghost of a heavy cruiser, haunts the seas; wherever it appears, a disaster follows.
More anime shows
See allSpeed Racer
An 18-year-old driver from a family of motorsport fans competes in various international races with his high-tech Mach 5.
Yu-Gi-Oh! GO RUSH!!
Twins Yuhi and Yuamu Ohdo believe there's alien life beyond the stars, even though their attempts to prove it have only ended in failure; their hard work and dedication are about to pay off when an extraterrestrial finally arrives on Earth!
Beyblade: Burst
Elementary-school student Valt Aoi is crazy about Beyblade and is best friends with Shu Kurenai, who is a prodigy at the game and has been named to the national Beyblade tournament's final four. Inspired by his friend's accomplishment, Valt makes it his goal to reach the tournament himself. The first step on the road to the big leagues is to win his district tournament, which includes some tough opponents. As he makes his way up the ladder, Valt reaches new heights and extends his circle of friends, eventually -- unknowingly -- dreaming of becoming the best Blader in the world.
Marine Boy
"Marine Boy" is produced in Japan but is intended for US audiences; it is one of the first color cartoons to come from Japan, soon to be sharing syndicated screen space with the likes of "Kimba the White Lion" and "Speed Racer."