Fidler came to prominence in the 1980s as a member of the Doug Anthony All Stars (DAAS), an Australian musical comedy group also comprising Tim Ferguson and Paul McDermott.

Fidler began his broadcast career on TV and presented shows including Race Around the World, Aftershock, Mouthing Off and Vulture.

[4] In 2018, the program's name changed to Conversations and former Radio National arts journalist Sarah Kanowski joined Fidler as a regular host.

Saga Land, written with Kári Gíslason (ABC Books, 2019) was shortlisted for the NSW Premier's Literary Awards, Douglas Stewart Prize for non-Fiction.

[10] Fidler was also the presenter of the annual 2018 Seymour Biography Lecture at the National Library of Australia, speaking to the topic "Telling and writing the story".