Rodrigo Villar was a young boy from Mexico City who was good friends with Señor 105. He went on to become Señor 105's nemesis, Desolador. (PROSE: The Rise & Fall of Señor 105)
Rodrigo often sold packets of chicle in the streets. There was a photo of Rodrigo in Señor 105's house. On the day of the opening ceremony of the 1968 Olympics, Iris Wildthyme encountered Rodrigo while he was selling chicles. Rodrigo gave Iris information about Señor 105 in return for her buying some chicle. (PROSE: Iris Wildthyme y Señor Cientocinco contra Los Monstruos del Fiesta)
When Rodrigo pressed a few buttons on Señor 105's Zodiac Machine, he accidentally transported himself and 105 to the Eiffel Tower. They had an adventure in Paris which involved meeting Sheila.
On 1 October 1969, Señor 105 tasked Rodrigo with delivering a book club invitation to Jorge Zumbido. As thanks for the delivery, Zumbido gifted Rodrigo a signed copy of one of his records.
Shortly before the 1969 Day of the Dead, Rodrigo helped 105 paint sugar skulls. (PROSE: Elementary, My Dear Sheila)
Rodrigo and Señor 105 once travelled to Tlalocan, where they were seen by Primo de la Vega. (PROSE: Against Nature)
Desolador unleashed the technological plague that consumed the cyborgs of El Mundo. The Satyrmen who survived referred to him as the "Scion of Nyarlathotep, Patient Zero, the King of the Heartless, the Anti-Luchador".(PROSE: The Rise & Fall of Señor 105)