He took McLiam, the Gaelic form of his real surname Williams, as a stage name.[1]
His acting career began in Maxwell Anderson's Winterset in San Francisco in 1946.[4] After a few roles in plays in California he moved to New York.[1] His first Broadway role was as a guard in Maxwell Anderson's Barefoot in Athens in 1951. His other stage roles include Shaw's Saint Joan, and Tiger at the Gates, Christopher Fry's version of a Jean Giraudoux play, which ran 1959–60 on Broadway. He appeared in the original Broadway cast of One More River (1960).[citation needed]
McLiam portrayed Ellis Carter, a young man seeking freedom from his domineering brother, in the 1961 episode "The Big Spender" of the television seriesWindow on Main Street. He appeared in "The Wild Wild West" S3 E17 "The Night of the Headless Woman" as Tucker (1967).
He was John of Gaunt in William Woodman's filmed version of Shakespeare's Richard II (1982): while the cast's acting was generally judged as poor, Charles R. Forker said McLiam delivered Gaunt's most famous speech "like an operatic aria" but in general was no match for Sir John Gielgud at speaking verse.[8]
Writing
His play The Sin of Pat Muldoon, about a Roman Catholic family, ran for five performances from March 13 to 16, 1957 at the Cort Theatre on Broadway. The central character, played in that production by James Barton, is a father who renounces his faith following the death of his son and spends his savings on partying and loose women before having a heart attack. Though he attempts to resolve some of his family's problems, he dies unrepentant.[9] Playwright and producer Maxwell Anderson, given the script to consider producing it, condemned the play as lying on well-trampled ground following Seán O'Casey's Juno and the Paycock, declaring, "I've grown weary of the whole subject. An ancient, irritable, blasphemous, dying but loveable Irishman says his last ten thousand words and goes to his own place. The hell with him."[4]