He made his Broadway debut in Hotel Paradiso in 1957, but his first major recognition was for Off-Broadway's The Moon in Yellow River by Denis Johnston, for which he won an Obie Award.

[4] Coco's first modern collaboration with playwright Terrence McNally was a 1968 Off-Broadway double-bill of the one-act plays Sweet Eros and Witness, followed by Here's Where I Belong, a disastrous Broadway musical adaptation of East of Eden that closed on opening night.

The two later joined forces for a Broadway revival of the musical Little Me and the films Murder by Death (1976), The Cheap Detective (1978) and Only When I Laugh (1981), for which he was both Oscar-nominated and Razzie-nominated.

End of the Road (1970), The Strawberry Statement (1970), Tell Me That You Love Me, Junie Moon (1970), A New Leaf (1971), Such Good Friends (1971), Man of La Mancha (1972), The Wild Party (1975), Charleston (1977), Scavenger Hunt (1979), Wholly Moses!

[5][7] On television, Coco starred on two unsuccessful 1970s series, Calucci's Department and The Dumplings, and made guest appearances on many series, including ABC Stage 67, NBC Children's Theater, The Edge of Night, Marcus Welby, M.D., Trapper John, M.D., Medical Center, Maude, Fantasy Island, Alice, The Eddie Capra Mysteries, Murder, She Wrote, The Muppet Show, The Carol Burnett Show, The Love Boat, $weepstake$, and St.

[10] Coco died at St. Vincent's Hospital, Manhattan, on February 25, 1987, at age 56 after suffering a heart attack at his Greenwich Village home.