Aqua

Aqua is a major protagonist in Avengers: Endgame. She is also a goddess and I know literally nothing else about her canon character. She has a staff which houses the Mind Stone.

Appearance
She is a girl who has long blue hair and a water-molecule shaped clip in it. She wears a blue vest, white detatched sleeves, and a dark blue mini-skirt and tall boots.

Story
Aqua first appears in Act I during the Re-Assemble Arc. She has been deprived of her powers after losng to Thanos (would that even canonically work?) and is forced to be a cashier at a gas station in Australia. She attempts to appear happy with her current status, but eventually rejoins the Avengers. She is not particularly mature or intelligent, which annoys Squidward and Kumatora often. She regains her powers in the Tokyo Arc in order to save her fellow Avengers when Porky Minch attacks Rosalina's Space Station. Aqua ultimately defeats Porky Minch. At an interview with the cast members after the film's release, Nia called the Porky Minch battle Aqua's excuse to be in the film. Aqua is one of the Avengers captured on Thanos's Sanctuary Ship in Act II, and was captured and taken to the Memory Chamber to be interrogated. Fortunately, she doesn't give much information to Thanos even when torchered into telling the truth, due to her lack of understanding on the entire concept of time travel. However, Himiko Toga was present and drank large amounts of her blood. This allowed her to take Aqua's form and go to the present with them, leaving Aqua stranded in the past. However, after Thanos's ship is taken to the present by Toga, Aqua was able to escape the vessel before All Might Destroyed it. Aqua attends Deku's funeral.