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Quick Bio for Banshee (young justice oc)

Name: Banshee

Alias: Sue Long

Powers/Abilities: Banshee Scream, martial arts training

Age: 16

Mentor: Black Canary/Dinah Lance

Gender: Female

Sexual Orientation: Heterosexual

Love Interest: Kaldur/Aqualad

Best Friends: Artemis and Wally/Kid Flash

Personality: She's a peace maker and always willing to help others, but internalises her own problems, refusing help. Though she is trust worthy, it is difficult for her to trust others and open up. She projects a bubbly, fun-loving, and energetic personality, to cover up her issues. This personality isn't fake, it's just not the full truth. Sue is childish, immature, impulsive, and disrespectful in season 1, but as the season progresses and she goes through some bad stuff she beings to mature quickly. Between seasons 1 & 2 she leaves the team for.... reasons, and by the time she rejoins the team just before season 2, she has matured, learnt respect and is trying to open up to her friends.

Backstory: Sue was born to Ly Suong (from Vietnam) and Brennen Long (from England) when they were both studying science in America. Not long after Sue's birth her mother left, leaving Brennen to raise Sue himself. 
From the moment she could walk and talk, Sue became her fathers greatest experiment. He wanted his daughter to be perfect. His definition of perfect. Which meant she had to be beautiful, intelligent and talented at things like maths and literature. She preferred sports, and excelled in soccer. This caused friction between them as Brennen wanted his daughter to attend lectures and take part in science fairs while Sue wanted to join the local sport teams. This was a problem for the pair, but it was what Brennen did next that truly hurt his daughter.
After the appearance of sidekicks like Robin, Kid flash etc, Brennen realised that his daughter could never be 'perfect' as long as she was an ordinary human. So he began to expose her to various chemicals and radiation, convinced she could develop meta-human abilities.
When Sue was 15, after three years of experimentation, her powers manifested. In one of her many arguments with her father, one of her screams sent her father flying and shattered the windows. Realising what she could do, Sue took her chance and ran away, to escape her father, before he could find anything more to do to her.
Sue wandered the streets for a few months after that, living off what she could find or steal, and eventually, she was found by Green Arrow and Speedy. When they discovered her power, they called in Black Canary.
Sue was initially against working with Black Canary, she had lost all trust in others thanks to her father, but through persistence Canary was able to convince Sue to join her. Canary trained Sue in both how to use her powers and martial arts.
Sue joined the team on Independence Day with Robin, Kid Flash and Aqualad.

Used a screenshot of Miss Martain as a base.
Young Justice belongs to Warner Bros/DC
Banshee belongs to me