Squidward

Squidward is a major protagonist in Avengers: Endgame and appeared in the 2012 "The Avengers" as the superhero Sour Note. He is Spongebob Squarepants's nextdoor neighbor.

Appearance
Squidward has light blue skin and six tentacles (two arms and four legs). He also has a bulbous head with a large nose. He wears a brown shirt most of the time, and although he appears to wear no pants, based on the show he either wears pants the same color as his skin or biologically has pockets on his waist.

Story
Squidward is one of the Avengers who greet Ness and Kumatora after they are brought to Earth from the Phase Distorter by Rosalina in Act I. He helps restrain Thanos after they find him (shortly before Kumatora kills him), and then disappears after the five year gap. Anne states that he simply "flew the coop" one day. However, he reappears along with Patrick in Bikini Bottom during the Re-Assemble Arc. The two work as rogue assassins killing off villains who run Bikini Bottom at the time. During the time they are on screen, they are attempting to capture Mr. Krabs and Mrs. Puff. After re-joining the Avengers, Squidward mostly shadows the other Avengers and gives sarcastic remarks until Act III, where he finally stands up to Squilliam Fancyson in The Final Battle. Squidward also attends Deku's funeral.