Barney Rubble is a fictional character who appears in the television animated series The Flintstones. He is the diminutive, blond-haired caveman husband of Betty Rubble and adoptive father of Bamm-Bamm Rubble. His best friend is his next door neighbor, Fred. In early episodes, Barney had a New Jersey accent. It was soon changed to a deeper, more chuckle-like voice. In "On the Rocks" and the late 2000s, his Jersey accent returns.