We know, Tosh and Owen died in season 2 - as did our beloved Ianto Jones in 'Children of Earth'. So technically the term 'biography' is wrong, but as we say in SG-universe: 'No one ever dies in SciFi' and thus we decided to ignore RTD in this case and his reasoning for 'reality', 'torture' 'shock-effect'. We'll just keep watching s1+2 until "Exit Wounds" plus CoE up until Day 3 and pretend they are still alive - thank fandom's FanFiction.

WARNING: Naturally those thingys contain SPOILERs