Carlos commands the Romani traveling performance group, the Carlos Company. This troupe provides Isabel, Sebastian's mother and a core member, with her primary means of travel and livelihood. Isabel shines as the troupe's star attraction, celebrated for her singing and beauty, while also applying practical skills like creating and repairing their costumes – a talent significantly showcased when she crafts a wedding dress for Anne-Marie.

As Isabel journeys across regions, the Carlos Company offers essential logistical support and a vital mobile community. Their travels create opportunities for Sebastian to encounter his mother during his search. Former members, such as performers Oscar and his son Johnny, maintain ties to the troupe and Isabel, with Oscar treasuring a photograph of her. Guided by Romani tradition, the troupe's customs shaped Isabel's past decision to place Sebastian with an adoptive family following her marriage to an outsider.

The group's movements and performances directly enable pivotal reunions between Sebastian and Isabel throughout the narrative. Carlos functions as the troupe's organizational authority, though his personal history, motivations, and individual development remain undefined beyond his leadership role.