Cypher made his television debut as the Prince in the original 1957 production of Rodgers and Hammerstein's Cinderella opposite Julie Andrews in the title role. He is particularly remembered as Chief of Police Fletcher Daniels in Hill Street Blues, a role he played throughout the run of the series (1981–87).
Cypher made his screen presence known as the Prince in the initial 1957 production of Rodgers and Hammerstein's Cinderella, opposite Julie Andrews as the titular character. He is most remembered for his long-running role as Chief of Police Fletcher Daniels on Hill Street Blues, which spanned from 1981 to 1987.