Name: Dimitri Romanov
Age: 38
Biography: Dimitri was once a member of the White Bears, joined willingly from one of the most advanced of the the Canadian Vaults, Vault 19, one of the only two that joined willingly. The man was a scientific prodigy, passing many of his peers in the early days of his youth, and graduating the classes by the time he was ten. At the age of fifteen, he was fixing the sentry bots in the Vault better than the current mechanics, and could hack nearly any of the Vault's computers. So, when the White Bears appeared outside of the Vault, it was no wonder that the Bears took him along with them.
With the aid of Dimitri, one by one the other Vaults opened up to the Bears, and their defenses were turned on them. This earned him a spot with the greatest of the White Bears, even if he was the shittiest shot they'd ever seen. Which is how he met Magnus, the Beast of the North, before he was known as such. The pair became fast friends, Magnus always interested in hearing Dimitri's scientific talk, while the latter enjoyed watching the other use nearly every weapon with perfection. At one time, Dimitri even attached a small camera to Magnus's mask, videotaping the slaughter of an entire village so that he wouldn't miss a moment of it. It always gave him a little rush.
However, when the time came for the Enclave to take over Canada, Dimitri retreated back to Vault 19, where he sealed the door and locked out most of the White Bears. Within, he explained the situation to his fellows, and they all agreed that it would be better to try and parley with the new superpower of the North, rather than stick by the dying Bears. And, when the Enclave came, Dimitri opened the door and welcomed them with open arms and a treaty that was already written up with terms similar to those that had been negotiated with the White Bears.
Now, with the new ally made, Dimitri retreated into the depths of the Vault, locking himself up in his private labs. Supplied by the Enclave as per their treaty, he stayed there for the next five years, no one seeing him or hearing from him during the entire time, save the woman who brought him food. When he emerged, the man was nearly unrecognizable. Most of his face was covered in metal, and his arm was changed into one of steel and wire. If one were to check beneath his clothes, they would see that most of his chest and legs had been upgraded as well, metal and wiring mixing with the flesh. And, stick out from his back, a third arm, more rudimentary than his other ones, but just as effective... And, with a few special upgrades of its own.
After his revelation to the Vault, he left them, and moved onto the Enclave to become one of their top scientists. Not only that, but he was one of the best robotic engineers they'd ever seen, and likely to be the best they ever would for decades to come. Always favoring to work alone to keep others from stealing his work, he became quite introverted, unless he was boasting of his work, or trying to convince others that steel was greater than flesh, and would always be.
Considering his former achievements, his greatest one himself, it was no surprise that he was assigned to the Eagle Claw team to be the one who would repair and inspect their equipment, and be their adviser on all things mechanical and science. Though, it was late that he was assigned, and he was unable to see off the squad. However, you could be bet he'd be the first to welcome them back for a job well done.