Marcello Toninelli (born 25 June 1950) is an Italian comics writer, best known as main writer of series of Zagor between 1982 and 1993.
Toninelli began a collaboration with Sergio Bonelli Editore in 1982, and worked on the Zagor series.
Toninelli was the main writer of series from number #203 until #334 in 1993.
For Bonelli he also wrote and episodes of Piccolo Ranger, Dylan Dog, Nick Raider and Kerry il Trapper.
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