Jesús Ronaldo Castillo Rojas (born August 27, 1995) is a Venezuelan professional baseball pitcher who is a free agent.
[2] On February 18, 2013, Castillo and Erick Leal were traded to the Chicago Cubs in exchange for Tony Campana.
[6] He split the 2017 season between Burlington, Inland Empire 66ers, and the Mobile BayBears, going a combined 9–6 with a 3.32 ERA over 124+2⁄3 innings.
[11] In 2021, Castillo made 26 appearances (19 starts) split between the Double-A Biloxi Shuckers and the Triple-A Nashville Sounds.
[13] On July 14, 2023, Castillo was signed by San Marino Baseball Club of the Italian Serie A.