Aidan Paul Harney is the main protagonist of A Young Alliance. He is an Amerasian(American father Thai mother) boy and is the third youngest of his group. He, along with Zoe, Raphael, Yuto, Thaiyo, Ankit, Sheryl, Tanya, Shion, Jamie and Charlie are the founders of The Young Alliance Organisation consisting of foreign, half foreign and Thai-Chinese students from school.
He has short brown hair, hazel brown eyes and light skin with freckles. He mainly wears blue braces with every clothing he wears. When he is in school, he brings a black school bag. When he is outside school, he wears a variety of clothing. At home, he wears a red and white jersey and black shorts. When he goes outside, he wears his casual clothing. They consist of a grey under armour shirt, blue jeans and white Adidas shoes. During the rainy season, he wears an unzipped black hoodie over a blue and white jersey, blue jeans and black and white Adidas shoes. In cooler months, he wears a white elbow-length shirt with red sleeves, black jeans and red and white high-cut converse shoes. In special events, he wears a rolled sleeved grey blue dress shirt, black jeans and black and white Adidas shoes. In some events, he wears a blue hooded sweatshirt, black jeans and black and white high-cut converse shoes. In Singapore, he wears a red short-sleeved unbuttoned shirt over a white shirt, blue jeans and white Adidas shoes. When he goes to school, his school uniform consists of a white short-sleeved shirt, blue shorts with a brown belt with a gold buckle, white socks and black low-cut sneakers. His scout uniform consists of a tan short-sleeved dress shirt with pockets, tan shorts, dark red and black beret with a gold scout symbol on it, his name on the right pocket, a purple global scout symbol on his left pocket along with a blue and gold boy scout symbol and 3 red stars indicating he's in Grade 9, a brown belt with a gold buckle, tan socks and brown low-cut sneakers. He has 2 PE outfits, one consists of a red and white polo shirt, black and red jogging pants, white socks and white low-cut shoes and the other is the same but he has a bright blue polo shirt indicating he is in the blue team like his classmates. He stands on average 14-year-old height.
Aidan is sporty and enjoys basketball and soccer/football. He is bilingual and can speak Thai and English. Despite this, he mainly speaks English in class. He is friendly towards the boys and Zoe, though she is the only girl he's friends with. He can sometimes prank Zoe, in which she takes seriously. Overall, he is kind and respectful. He is also smart, but didn't pass much subjects.
His first name, Aidan is the anglicisation of the Irish male given name Aodhán and the Scottish Gaelic given name Aodhàn.
His middle name, Paul is from the Roman family name Paulus, which meant "small" or "humble" in Latin. Paul was an important leader of the early Christian church. According to Acts in the New Testament, he was a Jewish Roman citizen who converted to Christianity after the resurrected Jesus appeared to him.
Aidan has a middle name because of American naming customs as middle names are not common in Thailand.
Aidan loves sports and he is good at basketball and football. But he isn't best at other sports(especially Thai sports) such as sepak takraw, chairball and handball. He is also a good swordsman but wields a rod and is skillful in it. He is also bilingual, he is able to speak Thai and English. He is also skillful in video games, mainly Fortnite and Call of Duty. With the help of the crystal, he is able to manipulate thunder, run really fast and charge phones.
- Aidan is the only Amerasian in the group and is the only one who exhibits a Caucasian/White appearance
- Aidan might be shown to have a crush on Zoe, but it isn't true because Zoe is into Raphael
- Aidan is of Irish-French-American and Thai descent
- He is roman catholic
- He is 14-years-old