He only appears in the GTA Online mission Time To Get Away. In this mission, his cousin Martin Madrazo asks the GTA Online Protagonist to rescue him from Donkey Punch Family Farm in Paleto Bay. The Online Player then escorts him to McKenzie Field to escape in a waiting Maverick.
- "El Estupido" is Spanish for "The Stupid".
- It is assumed this is an insult by Martin towards his cousin (due to the circumstances of the mission) rather than a usual nickname for the character; however, his real name is never revealed.
- The character model used is also used for the Armenian Mob