Laugh-In
Johnson is best known for his work on Rowan & Martin's Laugh-In from 1968 to 1973, on which he played many characters, including "Wolfgang," a cigarette-smoking German soldier oblivious to the fact that World War II was long over, as he skulked while hidden behind a potted plant. He would then invariably comment on a preceding gag with the catchphrase "Very interesting ...," which Johnson claimed was inspired by a Nazi character who spoke the line during an interrogation scene in the film Desperate Journey (1942). Often toward the show's close, he (as the German) would offer words of affection to "Lucy and Gary" (Lucille Ball and her second husband Gary Morton). The Lucy Show and later Here's Lucy on CBS were in direct competition with NBC's Laugh-In on Monday night. Johnson reprised the role briefly on Sesame Street in the early 1970s, and while voicing the Nazi-inspired character Virman Vundabar on an episode of Justice League Unlimited.
His other prominent Laugh-In character was "Tyrone F. Horneigh" (pronounced "horn-eye," a "clean" variant of the vulgar term "horny"), the white-haired, trench coat-wearing "dirty old man" who repeatedly sought to seduce "Gladys Ormphby," (Ruth Buzzi's brown-clad "spinster" character) on a park bench. Tyrone would enter the scene, muttering a song (usually "In the Merry, Merry Month of May"), and, spying Gladys on the bench, would sit next to her. He would ask her a question, and regardless of the answer, turn it into a double entendre. She would then start hitting him with her purse and he would fall off the bench, sometimes with a plea for help.
To boost ratings in the third season, Tyrone courted Gladys in an on-air wedding storyline on the March 16, 1970, episode, with Henry Gibson appearing as the officiating parson and Tiny Tim and Carol Channing joining the festivities. Alas, both bride-to-be and groom-to-be walk out of the church just before the wedding vows are spoken.
Years after Laugh-In ended, the two characters were the subject of an animated Saturday-morning children's show, Baggy Pants and the Nitwits, with Tyrone as a helpful, muttering "superhero."
Johnson and his brother Coslough earned Emmy Awards while working on Laugh-In.