Urchin Invasion


Episode Info

The Octonauts visit Shellington's sister and her newborn son in the kelp forest but soon discover that the forest is threatened by an infestation of kelp-eating urchins.


Simon Greenall
as Barnacles
Jo Wyatt
as Tweak
Rob Rackstraw
as Kwazii
Paul Panting
as Peso
Keith Wickham
as Professor Inkling/Dr. Shellington
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Urchin Invasion Photos