Matt Walsh is a comedian and a guest and contributor to the Best Show on WFMU. As a guest, Walsh has promoted his movies and tv shows on the air such as Old School and Dog Bites Man.

On February 23, 2010, Walsh cursed during a live phone interview on the Best Show; Tom immediately hung up on him and banned him from the program for life.

On March 27, 2012, Walsh returned to the show as a call-in guest.