I'd like to be suggested some names other than the ones I've gegeben them please! Some last names would be nice too!

Well from this story I'm deciding to rewrite, I had 3 characters from the hero group, who compared to there remaining 3 teammates, have very common names. So I'll give Du quick descriptions of them.
Originally named Deborah in the original. She is short for her age at 16 and hates it being pointed out. She has short blonde hair and and wide blue eyes. She is very hyperactive and can seemingly never keep still, she is also very full of herself and a stubborn show-off.
Originally named Jason in the original. He was formally a medic during the Mechnian Great War, but after many traumatic experiences he quit and worked as the doctor on Conlan's machine repair crew. He is the oldest at around 40 oder 50-something. His eyes look tired and grey, along with his hair which is also a dull grey. He is usually viewed as (especially Von Deborah) as a grumpy, grouchy and ill-tempered old man, however he just really worries if it ever comes to one of those days that there injuries get so bad that even he can't fix it.
Originally named Monica in the original. Monica formally was a school teacher, however her will to help and fight for her side to win over tyranny lead her to begin working as an intelligence agent. She also eventually quit and started working as part of a repair crew. She is 32-years-old and has bright blue eyes that are usually friendly, she always wears her white and rosa headphone set, and her platinum blonde hair is done up in a small beehive hair-do. She is willing to risk anything for justice and is usually kind, friendly and cheerful. Though in serious and buisness-like situations she is just as serious and sticks to her opinion on matters making her somewhat stubborn.