Sebastian was a resident of a small, rural village in Eastern Europe that had recently been attacked by a horde of Lycans and other creatures. Although the majority of the villagers had died from the initial attacks (which happened very suddenly) he and a few survivors gathered at a house owned by another local named
Luiza who had converted her large, fenced-off home into a safe space.
He appeared to be a young adult, around the age of 25 or slightly younger - and didn't seem to have any other surviving family. From what little we know, he was aware of
Luiza and her husband
Vasile, as well as the other survivors in the room. When Ethan joined the fray with
Leonardo Lupu and his daughter
Elena Lulu, he was very passive - perhaps exhausted due to his injuries.
He was attacked at some point and received a facial injury which resulted in the loss of one eye as well as debilitating injuries to his legs. He was given first-aid - his head was bandaged and he was given a crutch so that he was still relatively mobile. Not long after application, the bandage began seeping blood through where he lost his eye.
When Leonardo began to turn into a
Lycan from his infected injury, Sebastian was one of his first victims - he died from having his throat torn out, and shortly after flames ripped through the entire building which would have burned up his corpse.
In concept art, Sebastian can be seen holding a charm with what appears to be the same design
Ingrid's necklace - so it is entirely possible that the two are related, although this is pure speculation as
Roxana wears a similar looking charm around her neck also.
