- His father's name is also Walter. In addition, before he entered the Big Brother house, he had a flatmate whose name was Walter as well.
- His favorite books are the Harry Potter novels.
- Lives in Berlin with wife Henriette and works as a doctor.
- Wife Henriette gave birth to a baby girl on 25 September 2007 (one day before his 31st birthday).
- One older sister, Kristina.
- Was the first Austrian to take part in Big Brother Germany.
- Lived in Klagenfurt, Carinthia, before entering the Big Brother house.
- Has aboriginal tribal tattoos on his back.
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