Professor Inkling

{{Professor Inkling}} - Professor Inkling is the venerable founder of the Octonauts. He is an Octopus and has a deep understanding of marine life. Inkling founded the Octonauts to promote marine research and preservation. Aside from being their founder, Inkling is also their oceanography professor. He rarely ever goes out on missions, but he has gone on a few, such as in The Giant Squid, The Great Christmas Rescue, and The Gulper Eels. Instead, he prefers to help the team from his library in the Octopod. However, Professor Inkling showed his physical prowess when connected to the Octopod to combat The Colossal Squid. He claimed to be an expert at tentacle wrestling. Unlike the other Octonauts, Professor Inkling (along with the Vegimals) is an amphibious creature and does not need a helmet or air tank. He is capable of breathing in and out of the water. But, like Captain Barnacles, he also possesses certain attributes pertaining to his species. He admits being able to squirt ink for protection and has little suckers on his arms for him to move and climb.

{{Captain Barnacles}} - Captain Barnacles is a very diligent polar bear, as he serves as the captain of the whole Octonauts crew. He is very kind, has a warm heart, and does his best to make everything right. At some points in few episodes, he is shown to be quite strict with his crew (especially Kwazii) if anything serious is happening or if people are not obeying his commands (however, this is only shown by Kwazii, who does not do it intentionally, but because he gets excited very easily). This just goes to show that he is a very good captain and leader.

Appearance: Professor Inkling is pink with eight arms, head flaps that resemble ears, and a white muzzle. He is normally seen wearing a monocle and a blue bow-tie attached to a white-collar.

Captain Barnacles has white fur with a blue snout and grey nose. His earlobes are white while the insides are light blue. He is one of the tallest Octonauts.

His normal Octonauts uniform is a blue long-sleeved jumpsuit with regular blue boots. He's also always seen wearing his Octo-Compass on his belt, which falls crooked on the right side of his body. His blue hat is exclusive to him, a sign of his captain status.