Willem Theodoor "Wim T." Schippers (Groningen, 1942) is a Dutch artist, comedian, television director, and voice actor. During the 1960s, he worked mostly as a visual artist, associated with the international Fluxus-movement.
As a television writer, director, and actor he is responsible for some of the most notable and controversial shows on Dutch televisions from the 1960s to the 1990s, creating a number of lasting characters and enriching the language with terms and expressions first coined in his shows. In addition, he voiced the characters of Ernie and Kermit the Frog on the Dutch version of Sesame Street.
Throughout the 1960s Schippers' work was popular with the director of the Stedelijk Museum in Amsterdam, Willem Sandberg, who bought many of his drawings and collages.
A notable work by Wim T. Schippers is the Pindakaasvloer ("Peanut butter floor"), a floor covered with peanut butter. The concept dated from 1962, but it was first realized in 1969 in Loenersloot. The work was redone in 1997 in the Centraal Museum in Utrecht, and again in a gallery in 2010.
Museum Boijmans Van Beuningen in Rotterdam bought the concept in 2010 and installed it in 2011; at least three visitors accidentally walked onto the 4 by 12 meter floor, and Schippers fielded more than 500 video questions on the blog Pindakaaspost.