Thenafter Müller had firm commitments on various German stages, returned to Switzerland in 1972 and worked for several years at the Theater an der Winkelwiese,[1] and also starred on the Bernhard-Theater Zürich.
[2][3] National popularity gained Müller with Ursula Schäppi in 1977 in Kurt Felix' "Teleboy" show, and as the Chifler couple; even a song was listed in the Swiss radio charts.
[4] Walter Andreas Müller's probably most popular role is the character of Hans Meier in the Swiss comedy serial Fascht e Familie in the 1990s.
But besides that, the multi-talented actor always cuts a fine figure and was present at pretty much every major theater in Switzerland.
In addition, Müller still works as a freelance actor, radio host, and tours as comedian, impersonator and parodist.