William Katt is an American actor and musician, best known for his role as Ralph Hinkley in the television series "The Greatest American Hero" (1981-1983). While primarily recognized for his acting career, Katt has also made contributions to music, particularly in the realm of rock. He is known for his work as a singer-songwriter and has released several albums, including "William Katt" in 1977 and "That's What Friends Are For" in 1981. Katt's music often blends elements of rock, pop, and folk, showcasing his versatile vocal style and songwriting abilities. His songs reflect personal experiences and storytelling, resonating with audiences who appreciate heartfelt lyrics and melodic compositions. While Katt’s impact on music is not as pronounced as his impact on television, he has maintained a dedicated fan base and continues to perform. His contributions to the soundtracks of his projects and collaborations with other artists have cemented his status as a multifaceted performer. Overall, William Katt remains a notable figure for fans of 1980s television and those who appreciate the intersection of acting and music.