Captain Barnacles

Barnacles is an anthropomorphic Polar bear

Twin sister- Bianca
Niece- Ursa
Nephew- Orson

-Captain Barnacles is the author of a book manual How to Pilot the Octopod, Third Edition
-Barnacles earned every Polar Scout Badge except one
-He and Dashi are the only Octonauts who regularly sleeps with their hats on in bed.
-Captain Barnacles is often seen playing the accordion
-The entire crew often gets a headache when he plays his accordion, as he has trouble playing it correctly sometimes.
-Other hobbies of his include writing in his Captain's log, making shadow puppet shows, singing sea shanties + singing in the rain, exercising, dancing to music with the Vegimals, and building models (in the style of ships in a bottle, in this case Gups, as he's seen making a model of the Gup A)
1He usually squints his eyes whenever he is giving orders, thinking about problems or talking to his crew at certain times
-Captain Barnacles is claustrophobic
-Out of the whole crew, he considers Peso to be "The bravest Octonaut I've ever met"
-It is possible he can hold his breath for more than two minutes
-Captain Barnacles' favorite flavor of kelp cake is Chocolate
QHe is the Octonaut who is stung by jellyfish the most
-Captain barnacles is strict sometimes, as he does not like Kwazii leaving the gup without noticing him then seeing him swim out without his permission at the right time, which makes him have to follow Kwazii back
-Captain Barnacles' family might be from the arctic
-The Great Arctic Adventure shows Captain Barnacles visiting Bianca and her 2 twins, who are living in Northern Canada. However, Barnacles' family live in a den that is in Alaska

Captain Barnacles is the captain of the Octonauts and a brave polar bear. Along with being the captain, Barnacles is also the strongest member of the crew, and he's demonstrated that in a number of different episodes. He's also one of the most level-headed crew members, often dismissing Kwazii's outlandish stories about sea monsters and ghosts. His crew has a lot of respect for him. He's mainly one of the most iconic characters out of all the Octonauts, and plays as the main character mostly. It's also been revealed that he rather fancies playing the accordion. Rather unfortunately, he has trouble playing it well. So far, the only ones to appreciate the music have been a pod of Orcas. He is also an oceanographer and a map finder. Captain Barnacles is also very fond of the Arctic Circle, as that is where he grew up with his twin sister Bianca. Captain Barnacles speaks with a British accent. It is revealed that he can rather be embarrassed by situations he gets into to. He mispronounces Shellington's name and gets his sentences mixed up when he looks at what's coming to him. he has claustrophobia after being stuck inside an ice cave/hole as a cub. Being in the narrow Sac Actun Cave tunnels reminded him of how he came to fear tight, closed-in spaces as a young cub and throughout his adult life. It is interesting to note that at the time, Kwazii and Dashi knew about this, while Peso did not. This might be because Peso came to the crew later, or because Kwazii is considered more of a best friend or a right-hand man. However, Barnacles manages to overcome his fear with the help of Peso's bravery and support from Ryla and the other Octonauts.