shawnee smith

From Lastfm:

Shawnee Smith is a film and television actress most well known from the TV series Becker playing the ditzy secretary Linda as well as from the gory Saw film series playing Amanda Young. She fronted a band called Fydolla Ho and recorded songs on her own.

From Wikipedia:

Shawnee Smith (born July 3, 1970) is an American film and television actress and musician. Smith is best known for her roles as Amanda Young in the Saw films and Linda in the CBS sitcom Becker. Smith once fronted the punk/metal band Fydolla Ho, with which she toured the United States and the United Kingdom, and is also the other half of Smith & Pyle, a desert country-rock band, with actress Missi Pyle.