Sebastian

Sebastian is a character from The Little Mermaid and is a minor recurring character in The Disney Club. He is a crab who serves as King Triton's advisor and "distinguished" court composer and singer-songwriter, though is more often-than-not regularly tasked with watching over Ariel.

Personality
Sebastian is generally carefree and fun-loving, especially when dealing with his most-beloved profession: music. However, the urgency of his job as the king's most sought-after assistant, requires Sebastian to be strict and no-nonsense often. This is sometimes a point of contention; being as how Sebastian is less staunch than Triton, the two rarely see eye-to-eye when it comes to Triton's laws. However, as Triton's advisor, Sebastian must uphold the king's regulations no matter how unfair they may be. This makes Sebastian out to be "the bad-guy" in some situations (mainly those involving Ariel), but his moral compass has the tendency to push Sebastian to follow his heart, rather than the law.

Sebastian shows great disdain for Ariel's adventures and fascination with the human world due to the danger that comes with them. As his attempts to turn Ariel against her more controversial passions are often futile, however, Sebastian is a frequent—albeit, reluctant—participant of the young princess's adventures, mainly to protect her as best he can. So many near-death experiences have left Sebastian riddled with anxiety. He occasionally suffers from nervous breakdowns, which in turn makes him high-strung and irritable.

Ariel
Of all King Triton's daughters, Sebastian is undoubtedly closest to Ariel, though that's mostly in part to having been forced to watch over her so many times. After so much time together, he's gradually developed a paternal bond with Triton's youngest and has gone against his king's orders multiple times for the sake of her happiness, becoming a sort of surrogate father figure for her. He can still be strict with Ariel like Triton is, but like the king, it's purely out of love.

So one could imagine that he wasn't too happy when she started making human friends. Least of all walking on human legs. Well, at least until he realized how much happier she was exploring the surface. Then, rather than alerting the king about Ariel's transformation, her chose to silently support Ariel throughout her adventure upon the surface from the sidelines, doing nearly anything he could to hide it from her father, knowing she'd just be miserable if she stuck to the sea for the rest of her life.

The Gang
Sebastian, obviously, had a "beef" with the gang for taking Ariel literally out of the water and even seemingly mutating her or... something to turn her into one of them. However, his attitude towards them lightened up fairly quickly when he saw that their desire to show her the surface world was genuine.