His first work in USA was 1995's The Last Avengers Story, which was written by Peter David and published by Marvel Comics.

In 2005 he again collaborated with Joe Kelly on DC Comics Space Ghost limited series which revealed the character's origins for the first time.

(1997) at Marvel and JLA: Paradise Lost (1998), Haven: The Broken City (2002), Green Lantern (2003) and Batman: Legends of the Dark Knight (2006) at DC.

In 2006 he signed an exclusive contract with Marvel Comics and launched the second volume of Punisher War Journal with writer Matt Fraction.

Throughout his career Olivetti has worked in different mediums, including black and white, digital color, acrylics and oils.