Umberto was born in Cuba to Alberto Robina. At some point in his life, Umberto became the leader of\founded the Los Cabrones (later will be known as "the Cubans"), and later moved to Vice City, Florida, United States.
In 1984, as the leader of Cubans (Also known as Los Cabrones), he sends Victor Vance on missions to wipe out his most hated gang, The Cholos, which replaced the controversial Haitians in Vice City (The Haitians were removed from the game due to public backlash). Like his appearance in Vice City, Umberto is obsessed about how much "cojones" (referring to both the courage and the actual testicle size) his comrades usually have. Victor saves Umberto's father, Alberto Robina, from the Cholos in one of Robina's missions. Umberto, along with Phil Cassidy and two Cuban men, help Lance and Vic defend their businesses from assaults by the Mendez Brothers' henchmen in one of the last missions of the game. It is the only time that Umberto actually does "dirty work".
In Grand Theft Auto: Vice City, Umberto Robina is still the leader of the Cubans in Vice City two years later, who has been involved in a long-term Vice City turf war with Haitians. He is an extremely macho man who wants to wage full scale war with the Haitians, however, he has never been personally implicated in a crime and his bravery has been questioned within Cuban circles. He is good friends with Tommy Vercetti and treats him as an equal. His quote on it: "Tommy, to us, you're Cuban". It is unknown what happens to Umberto in the end, but it is likely that the Cubans are allied with the Vercetti Gang because of Tommy's work for Umberto.
VCPD Crime Tree Record
- Cuban warlord.
- Long term feud with Haitian criminals. Wants control of turf.
- Extreme macho man.
- Wants to wage full scale war with Haitians.
- Never implicated in a crime personally.
- Bravery has been questioned within Cuban circles.
GTA Vice City
- Two Bit Hit (Post-mission phone call)
- Stunt Boat Challenge (Boss)
- Cannon Fodder (Boss)
- Naval Engagement (Boss)
- Trojan Voodoo (Boss)
- GTA Vice City Stories
- Jive Drive (Post mission pager message)
- Nice Package (Boss)
- Balls (Boss)
- Papi Don't Screech (Boss)
- Havana Good Time (Boss)
- Blitzkrieg Strikes Again
- He looks similar to his voice actor Danny Trejo.
- He shares the same birth year from his voice actor.