Daniel L. Carlin is an American podcaster and political commentator. Previously a professional radio host, Carlin hosts three popular independent podcasts: Hardcore History, Hardcore History: Addendum, and Common Sense, for which he received recognitions and awards, including best educational and history podcasts. His debut book, The End Is Always Near, was published in 2019, and he has been involved in a range of other media appearances and collaborations.