[citation needed] Interested in acting and comedy, she started performing in local clubs as a stand-up comedian.

Her notable acting roles include "Nancy Reynolds" in Sandman (1993), “Professor Jones” in Class of Nuke 'Em High 2: Subhumanoid Meltdown (1991), credited as “Shelby Shepherd”.

Since Cheech and Chong's reunion in 2008, Shelby performed as their opening act at sold-out comedy shows on their cross-country tour.

[3] In 1975 in Los Angeles, Fiddis married Canadian actor and comedian Tommy Chong, becoming his second wife.

Shelby Chong is also the stepmother to Tommy's two daughters from his first marriage, Rae Dawn and Robbi.