Comedian Frank Ferrante made impersonations of Groucho a career. Various critics expressed disappointment that Sandow was still restricted to doing comedic impersonations. In 2005, Fator decided to combine his talents, singing, ventriloquism, comedy, and impersonations. His famous impersonations include Elvis and John Travolta. Jim Malone did impersonations as well as singing. Misers were notorious tricksters, so ingenuity transcending barely credible impersonations was generally needed. He was famous for doing voices and impersonations. Meader planned to record general satire and abandon his JFK impersonations. He was also known for his humor, including his impersonations of mentor Tim Gunn. Art Garfunkel, Edd Byrnes, Robert F. Kennedy, and Daryl Hall were among Hall's celebrity impersonations. Lennon recorded his lines at the same time as Jackson, who found the impersonations humorous. Ullman contends that her impersonations are played with great admiration and affection. Meanwhile, he worked on voice impersonations. Billy West provided the show with comedy impersonations, part-time, beginning on November 7, 1988. Hillenburg had made several "horrible impersonations" before he finally conceived of his character.