CBeebies/Octonauts

Cast

 * Bob (from Bob the Builder) as Captain Barnacles
 * Duggee (from Hey Duggee) as Shellington
 * T-Bone (from Clifford the Big Red Dog) as Kwazii
 * Pingu (from Pingu) as Peso
 * Milo (from Tweenies) as Professor Inkling
 * Sarah (from Sarah & Duck) as Dashi
 * Big (from Big & Small) as Tweak
 * Noo-Noo (from Teletubbies) as Tunip