Roberta spent four years working as a maid for the Lovelace family in Colombia, though she'll be the first to admit her cleaning and cooking skills are questionable. What matters more is the genuine bond she developed with Garcia, the family's young son.
Her real name is Rosarita Cisneros. She was once a FARC guerrilla trained as an assassin in Cuba and has an Interpol file to prove it. Back then, she earned the nickname "Bloodhound of Florencia" for her single-minded brutality in completing objectives.
In a fight, Roberta is legitimately terrifying. She's trained in everything—martial arts, stealth, weapons handling—and her physical capabilities border on inhuman. She's grabbed onto a moving getaway car by driving a knife into its rear bumper, nearly dragged out a muscular guy in the process, and casually fired a sniper rifle one-handed from the hip. Her arsenal has included sniper rifles, combat knives, an umbrella that's actually a shotgun, a briefcase that doubles as a machine gun, grenade launchers, spiked brass knuckles, and more pistols than most people own shoes.
What's striking about Roberta is the contradiction: she's one of Black Lagoon's most dangerous characters, yet she's genuinely kind, remorseful, and loving toward Garcia and his family. She's owned up to killing civilians—children, women, anyone—during her revolutionary days. Eventually she realized she was just a tool for drug cartels exploiting the FARC cause, so she walked away and took the maid job instead. Garcia made her promise to stay out of combat, but circumstances pull her back in, driven by revenge.
She's clearly inspired by El Mariachi—the character made famous by Antonio Banderas—right down to the signature suitcase machine gun and Latin American setting.
Content compiled by AnimeList.moe from publicly available sources.