Gorgo

Like nothing you've ever seen before!

When an undersea volcano sends tremors throughout the Atlantic, aquatic creatures come out of hiding. Merchant seamen Joe Ryan and partner Sam Slade harness the most unusual of the lot, a massive beast that looks like a Tyrannosaurus Rex. The enterprising sailors deliver their quarry to a British circus, but it turns out that the animal is a newborn. And, when his much larger mother arrives in London to rescue her son, the city feels her wrath.

Bill Travers

Joe Ryan

William Sylvester

Sam Slade

Vincent Winter

Sean

Christopher Rhodes

McCartin

Joseph O'Conor

Prof. Hendricks

Bruce Seton

Prof. Flaherty

Martin Benson

Dorkin

Maurice Kaufmann

Radio Reporter

Basil Dignam

Admiral Brooks

Barry Keegan

Mate

Tommy Duggan

First Naval Officer

Howard Lang

First Colonel

Dervis Ward

Bosun

Mick Dillon

Gorgo

Nigel Green

Bulletin Announcer (Uncredited)