In the post-war German cinema, Walter Giller played the perennial joker, comic relief or friend to the hero. He was at his best when the dialogue involved witty repartee.
Conscripted in 1942, he served for three years with an anti-aircraft unit. At the end of the war, he briefly became an American POW.
Lives with his wife Nadja Tiller in Lugano, Switzerland. They announced that
they will move to Hamburg to live in a retirement home in 2007.