Despite her still noticeable British accent on talk show appearances, d'Abo has mastered a variety of American accents for her many TV and film roles. She first acted for the cameras when she was 13, in a TV commercial, and two years later was celebrating her 15th birthday on the set of "Conan the Destroyer" (1984), in which she had a solid co-starring role as the virginal princess. D'Abo is best known to TV audiences as Karen Arnold, the hippie older sister on "The Wonder Years" (ABC, 1988-92) who personified the restless youth of the late 1960s, wearing headbands and bell bottoms, and