Amelia

Amelia Yuki, or simply Amelia, is the tertiary protagonist of the Peppermint franchise. She is Peppermint's schoolmate and sidekick and has the superpower of lightning. She is also friends with Oasis.

She is voiced by Ariel Winter, who also done the voice of Sofia from Sofia The First and Penny Peterson from Mr. Peabody & Sherman.

Before The Events of The Game (Peppermint: The Movie)
Amelia was shown when Peppermint enters the cafe motel. Upon opening the door, Amelia starts to glare at Peppermint, giving a grudging greeting when prompted.

When Peppermint goes inside to the cafe bar, she wants to know why she's mad at her. It was revealed that Amelia despise her due to Peppermint winning at the Student Tournament contest, to see who has the best talent, whereas Amelia got second place for managing to get a lightbulb working and connecting it with a light-switch and Peppermint got first for showing a person with all the 7 colors of the aura and demonstrates them as 'peace' and 'vigilance', causing Amelia to get jealous of her win. Peppermint apologizes, but Amelia doesn't care and she begins to ignore and despise her for all her life.

A lockdown starts in the cafe motel where the Red Chomper comes in and makes a mess, causing Peppermint to get up and fight it. Upon reacting to Peppermint having superpowers, she became more jealous until she starts to show faith in Peppermint. The scene cuts into Amelia holding a magical pebble (possibly from the shiny magical orb) and cuts back to the current scene. This give Amelia an idea to begin and have a change of heart for once and helps Peppermint defeat the Red Chomper, with the help of Oasis. Upon victory, Amelia now begins to apologize Peppermint for her past disliking towards her and begins to grow as friends together, along with Oasis.

When Amelia and the others, along with Captain Galaxy, arrived at Poland, she and Oasis frees people under Dr. Mystery's command and now fights with Dr. Mystery and his horrendous and ridiculous powers. Amelia does her best as he can to fight against Mystery but is now trapped under his command, along with Oasis and Galaxy. Amelia is soon freed by Peppermint after she managed to show off her true ultra potential and helps her finish defeat Mystery.

Amelia, Peppermint and the others were pronounced heroes in Poland and goes through a dimensional hallway that leads her and the rest (except for Captain Galaxy who returns in space) back to home. She meets a vision of Peppermint's mother and greets her.

Soon after they got home, another enemy named Magmarock drops in to wreck up the place and she and Peppermint, along with Oasis, goes after him in no time.