John Charles Carlin is a distinguished British journalist and author who also holds Spanish nationality. Born on May 12, 1956, his professional focus spans politics and sports.

Carlin is widely recognized for his acclaimed book, Playing the Enemy, published in 2008. This book, known in Spanish as El factor humano, received significant praise from the public and literary critics alike. The book served as the inspiration for the 2009 film Invictus.