Captain Fathom was an animated

Animation

Animation is the rapid display of a sequence of images of 2-D or 3-D artwork or model positions in order to create an illusion of movement. The effect is an optical illusion of motion due to the phenomenon of persistence of vision, and can be created and demonstrated in several ways...

 television

Television

Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...

 series produced in 1965 by Cambria Studios. Like Cambria's other productions, Clutch Cargo

Clutch Cargo

Clutch Cargo is an animated television series produced by Cambria Productions and syndicated beginning on March 9, 1959. Notable for its very limited animation, yet imaginative stories, the series was a surprise hit at the time, and could be seen on 65 stations nationwide in 1960.- Plot :The...

and Space Angel

Space Angel

Space Angel was an animated science fiction television series produced in the United States from early 1962 through 1964. It used the same Synchro-Vox lip technique as Clutch Cargo, the first cartoon produced by the same studio, Cambria Productions....

, it was produced in Synchro-Vox. 18 30-minute episodes, all in color, were filmed. The episodes could be broken down into 5 6-minute segments in cliffhanger format. Renowned comic book artist Alex Toth

Alex Toth

Alexander Toth was an American professional cartoonist active from the 1940s through the 1980s. Toth's work began in the American comic book industry, but is known for his animation designs for Hanna-Barbera throughout the 1960s and 1970s. His work included Super Friends, Space Ghost, The...

 was the director.
Captain Bill Fathom was captain of a submarine

Submarine

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

 called the Argonaut.