Pebbles Flintstone, the daughter of Fred and Wilma Flintstone, first appeared in the Hanna-Barbera animated series The Flintstones, specifically in the episode "The Blessed Event," which aired on February 22, 1963. Her first portrayal as an adult occurred in the 1993 television film I Yabba-Dabba Do!, voiced by Megan Mullally, where she is shown as a young woman with red hair styled in a shorter, mature fashion, pursuing a career in advertising and living independently in Hollyrock.

As an adult, Pebbles exhibits a blend of determination and impulsiveness, inheriting some of her father's penchant for schemes while demonstrating greater maturity and professional ambition. She is portrayed as a devoted partner to Bamm-Bamm Rubble, her childhood friend turned fiancé, and displays traits of emotional intensity, such as occasional mood swings and a tendency to jump to conclusions. Her character emphasizes independence and career focus, working as an executive in marketing and advertising, which reflects her evolution from a playful child to a capable professional.

Pebbles undergoes significant development in the 1993 films, culminating in her marriage to Bamm-Bamm in I Yabba-Dabba Do! despite familial obstacles, followed by relocation to Hollyrock. In the sequel Hollyrock-a-Bye Baby (voiced by Kath Soucie), she becomes a mother to fraternal twins, Chip and Roxy Rubble, embracing parenthood with immediate devotion while navigating the challenges of family life. These portrayals solidify her transition into a responsible adult, maintaining close ties with her parents and in-laws while building her own family, and she occasionally appears in later media reinforcing her role as a loving wife and mother.