Cast and Crew of Octonauts and the Great Barrier Reef

Octonauts and the Great Barrier Reef

In this musical special, the Octonauts must find a way to hold back hungry swarms of coral-eating starfish to save a new friend's fragile reef home.

Full Cast of Octonauts and the Great Barrier Reef

Simon Greenall as Captain Barnacles (Voice)

Simon Greenall

as Captain Barnacles (Voice)

Simon James Greenall (born 3 January 1958) is an English actor, producer, writer and voice artist. He has portrayed M...