I'd say his personality and voice is kinda like Weepy from The Cuphead Show: Kind, and can sometimes stand up for himself, but also easily sensitive. And he often gets bullied by characters like Fries, Snowball, Blocky, and Eraser, but most characters like Leafy, Liy, Marker, Black Hole, Woody, all the food characters, and even all of the hosts are often nice to or feel bad for him.
Credit to @finnbell for the onion asset!