In 1940, Johnson returned to Broadway after a fourteen-year absence to star in the musical review All in Fun. He was a regular performer on Broadway during the 1940s and 1950s, appearing in such roles as Charlie in Banjo Eyes, Sherman in Yours, A. Lincoln, Staff Sgt. Rocky Fulton in Something for the Boys, Alex Maitland in The Day Before Spring, and Hajj in Kismet, among others. During this time, in 1945, he became a member of The Lambs.[3]
He appeared as a castaway on the BBC Radio programme Desert Island Discs on 27 June 1951.[7] The programme asks guests to select eight records to have with them on a hypothetical desert island. Johnson's section included one of his own recordings, of "Where is the life that late I used to lead?", from Kiss Me, Kate, in which he was appearing at the time.[8]
Johnson died in Flemington, New Jersey, United States[1] from a heart attack on March 6, 1957, just sixteen days before his 41st birthday. He was survived by his wife, Jet MacDonald, and 3-month-old daughter, Julie.[2]