the Screen Directors' Playhouse episode of Robert Louis Stevenson's Markheim. In 1957, he guest-starred on the NBC detective series The Adventures of McGraw, originally titled Meet McGraw. In 1958, he was cast in five episodes as Juan Greco on ABC's Zorro, and in this same year played Gio Bartolo in the episode "Sidewalk Fisherman" in the ABC series Naked City. In 1960, he guest starred on the TV Western series Bat Masterson, playing a Scottish Sea Captain Angus MacLeod in S2E37's "Barbary Castle". He also guest-starred in episodes of two ABC sitcoms, The Donna Reed Show as Nick Melinas in "The Love Letter" (1960) and on The Real McCoys, in which he plays the fiancé of Gladys Purvis, the widowed mother of Kate McCoy. Between 1957 and 1960, Novello appeared as a skittish coroner in an episode of the ABC/Warner Brothers western series Maverick, also in Season 1, Episode 3 "According to Hoyle" as Henry Tree a private detective, also two episodes of the ABC/Warner Brothers western series. He appeared in the ABC/WB detective series, Bourbon Street Beat. He guest-starred as Beanie in the 1958 episode "Arson" of the CBS crime drama, Richard Diamond, Private Detective. In 1962, he played coin collector Nickolas Trevelian in "The Case of the Captain's Coins". He appeared in the syndicated crime drama Johnny Midnight. Novello guest starred twice on CBS's The Andy Griffith Show, as the main character in the episode entitled "Guest of Honor" and as an opportunist lawyer in "Otis Sues the County". He appeared on the television incarnation of Gangbusters as bank robber Willie Sutton. He was a regular on ABC's McHale's Navy as the con artist Mayor Mario Lugatto of Volta Fiore, Italy. He appeared in the episode of Climax!, Escape From Fear, and had a recurring role on Zorro as Juan Greco. Novello also appeared in several episodes of the ABC/WB series Lawman. He was cast as Guido Morales in the 1960 episode "Unsurrendered Sword" on the ABC series The Rebel. He appeared as well as a pompous Coin collector in the Perry Mason episode "The Case of the Captain's Coins". In a 1962 episode of The Andy Griffith Show, he played a thief passing through Mayberry to whom the city leaders unwittingly gave the Key to the City. He played the Frenchman "Verenne" in Season 1, Episode 14 "An Act of War" in the TV series, 12 O'Clock