Katherine Rose Halper (born July 11, 1980/1981) is an American comedian, writer, filmmaker, podcaster, and political commentator.

She has performed comedy at venues including Symphony Space, The Culture Project in New York, the Edinburgh Fringe Festival, the D.C.

[13] Halper's first film as director was entitled La Memoria es Vaga (2005), a documentary about the Valle de los Caídos and historical memory in post-Franco Spain.

[13] She was associate producer of Estela Bravo's Free to Fly: The US-Cuba Link (2004), about restrictions on travel between Cuba and the United States.

[9][15][16][17] She also co-directed Facing Fascism: New Yorkers Remember the Spanish Civil War, a video for an exhibit at the Museum of the City of New York.

[13] Articles by Halper have been published in The New York Times, Comedy Central, The Nation, Gawker, The Huffington Post, Alternet, Daily Kos, OpenLeft, The Raw Story, Jacobin, Salon, Vice, The Guardian, and Feministing, where she was a guest columnist.

[9] In September 2022, Rising refused to air a segment on their show in which Halper called Israel an "apartheid government".

[32] The podcast has since featured interviews with Tulsi Gabbard, Ro Khanna, Andrew Yang, Bernie Sanders, Michael Moore, Tim Robbins, Glenn Greenwald, Norman Finkelstein, Aaron Maté, Dennis Kucinich, Noam Chomsky, Adam McKay, Lowkey, Rashida Tlaib, and Roger Waters.