William Roger Reaves is an American pilot who alleges that he was one of the most prolific drug smugglers in history. He worked for Pablo Escobar and the Medellín Cartel. Reaves first met Barry Seal on a flight returning from Honduras after Seal's release from prison, according to Kings of Cocaine. Reaves is credited with discovering Seal and employing him as a pilot in drug-smuggling operations approximately two years before Seal began working directly with the Medellín Cartel.