Lengkepan kalimah di handap ieu: Dina 1954 Atkinson balik ka Broadway pikeun dibéntangan salaku Clyde Hallam dina pamaén aslina Sigmund Romberg "The Girl in Pink Tights". Dina taun 1955 anjeunna dibéntangan sabalikna Carol Channing dina produksi Broadway asli John La Touche "The Vamp". Dina taun 1956 anjeunna ngagambarkeun dua kalungguhan dina revivals musik anu dipasang ku NYCO di Lincoln Center: Frederick C. Graham ka Kitty Carlisle's Lilli Vanessi dina Cole Porter's "Kiss Me, Kate" sareng Gaylord Ravenal dina Jerome Kern's "Show Boat". Manéhna balik deui ka Lincoln Center dina 1957 pikeun ngalaksanakeun peran Tommy Albright dina NYCO's revival of Lerner and Loewe's "Brigadoon" nu saterusna pindah ka Adelphi Theatre di Broadway. Dina taun anu sarua anjeunna ngagambarkeun Jack Worthing dina "Who's Earnest?", adaptasi musik tina Oscar Wilde's "The Importance of Being Earnest" anu disiarkeun dina program televisi "The United States Steel Hour". Dina taun 1958 anjeunna nyiptakeun peran Doctor Gregg dina perdana dunya opera Douglas Moore "Gallantry" di Teater Brander Matthews anu ayeuna ancur di 117th Street. Manéhna ogé katempo di Lincoln Center taun 1958 minangka Frank Butler dina NYCO's revival of "Annie Get Your Gun" jeung salaku Letnan Henry Lukash dina perdana dunya opera Robert Kurka "The Good Soldier Schweik". Manéhna ogé portrayed peran Billy ka Jan Clayton urang Julie jeung Ruth Kobart urang Nettie di Rodgers jeung Hammerstein urang "Carousel" dina produksi di
Brussels Dunya Fair. Dina taun 1959 anjeunna dibéntangan di NYCO dina revival tina "Say, Darling" jeung salaku Pantaloon dina perdana dunya Robert Ward urang "Manéhna Anu Gets Slapped" jeung Norman Kelley salaku Count Mancini jeung Regina Sarfaty salaku Zinida. Ogé dina taun 1959, anjeunna muncul dina produksi San Francisco Light Opera Company ngeunaan "At the Grand", salaku Hakim dina revival "Can-Can" di Central Park, sareng muncul salaku Count Danilo Danilovitsch dina produksi televisi Franz Lehár's "The Merry Widow" pikeun CBC Television.