Character actor John Karlen, best known for his roles "Dark Shadows" and "Cagney & Lacey," has died. He was 86.

The Emmy-winning actor died Wednesday of congestive heart failure at a hospice in Burbank, Calif., friend and family spokesman Jim Pierson said.

Karlen played conman and scoundrel Willie Loomis, and later several other roles, on “Dark Shadows,” the cult-favorite horror soap that aired on ABC from 1966 to 1971.

He played Harvey Lacey, husband to Tyne Daly's Mary Beth Lacey, on the acclaimed CBS police drama “Cagney & Lacey,” from 1982 to 1988.

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Karlen won an Emmy as best supporting actor in a drama for the role in 1986.

FILE - This Sept. 21, 1986 file photo shows actor John Karlen, center, who portrays the husband of detective Mary Beth Lacey on the TV show "Cagney & Lacey, " posing with presenters Stacy Keach, left, and Angie Dickinson after Karlen won an Emmy for best supporting actor at the Emmy Awards in Pasadena, Calif. (AP Photo/Douglas C. Pizac, File)

Born John Adam Karlewicz in Brooklyn, New York, Karlen studied at the American Academy of Dramatic Arts and began his career on stage, appearing in the 1959 Broadway production of Tennessee Williams' “Sweet Bird of Youth.”

From the late 1950s until the mid-1990s, Karlen would work almost constantly in television, amassing well over 100 acting credits. In addition to his two long-running parts, he had guest stints or recurring roles on shows including “The Streets of San Francisco,” “Charlie's Angels,” “Quincy, M.E.," “Hill Street Blues” and “Murder, She Wrote.”

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Karlen also appeared in various movies, including 1970's “House of Dark Shadows,” a cinematic spin-off of the TV series.

His final major role was a reprise of his Harvey Lacey character for the 1996 television movie, “Cagney & Lacey: True Convictions.”

Karlen's survivors include his son, Adam.

The Associated Press contributed to this report.