Sam Wallman is a comics-journalist and cartoonist based in Melbourne, Australia. His work has been published by The Guardian and The New York Times, among others. In 2016, he visited the United States to draw everyday people's responses to the presidential election for Australian, Italian, and American media outlets.

Sam is a committed unionist, having worked as an organizer for the National Union of Workers, and a delegate on the shop floor prior to that. He has drawn cartoons for over a hundred trade unions and worker organizations around the world, and is currently developing large-scale murals and banners. He works out of the Workers Art Collective studio in the Trades Hall, Melbourne, the oldest union building in the world.