He was the first of all Swedes to take an Olympic gold in Beijing.
The Swedish 21-year-old won a super competition in the humpback piste final and won the gold before the big star from Canada, Mikael Kingsbury.
On Wednesday, the 21-year-old was back in Sweden and was hailed at Stockholm Central Station together with Almida de Val who took part in the bronze in mixed curling.
- It's absolutely fantastic.
You come home to Swedish soil with a gold medal around your neck, to then get this treatment is super fun, says Wallberg.
Who was the first person you called for Olympic gold?
- Mom and dad of course.
They are a big part of this and have pushed to all the training and all that it can be, he says.
Walter Wallberg will compete again already on Friday.
February 11, on Friday, a European Cup competition is arranged in Hammarbybacken.
Then the entire Olympic team with Walter Wallberg, Ludvig Fjällström, Felix Elofsson and Oskar Elofsson line up.
CLIP: Why Walter Wallberg won Olympic gold (February 5)
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Picture by picture: That's why Wallberg was better than the legendary Kingsbury