Michael C. Maronna was born in Brooklyn, New York, the oldest of three children, and began acting at the tender age of five. He attended public schools in Brooklyn and Queens while working on commercials, soap operas, and eventually on Broadway. After beginning 7th grade at Hunter College High School in Manhattan, Michael was cast in the Nickelodeon TV show The Adventures of Pete & Pete (1992) in 1989 for what began as a 60-second show between cartoons. He also appeared in Home Alone (1990) and Home Alone 2: Lost in New York (1992) as Jeff McCallister, Kevin's mean brother.
"Pete & Pete" began full production as a series in 1993, with Maronna in the title role, which appeared on Nickelodeon for three seasons. After graduating from Manhattan's City-as-School, Michael began working with lights as an electrician on films. His first job in that position was on the film Six Ways to Sunday (1997), which was directed by "Pete & Pete" alumnus Adam Bernstein, for which Maronna also auditioned for the lead role of Harry.
Michael was attended SUNY Purchase in Westchester County and studied documentary filmmaking in the Theater Arts and Film Conservatory from 1997-2001. He also appeared in several popular Ameritrade commercials in 1998 and 1999, which lead to an appearance with President Adam Bernstein in a White House Correspondents' Dinner video in the year 2000.
While attending SUNY Purchase, he played Jeff in Slackers (2002). Michael also did a memorable turn appearing as the Bagel Guy in the 2002 feature film 40 Days and 40 Nights (2002). He also appeared in several independent films, which include What Alice Found (2003), directed by A. Dean Bell, and Le New Yorker (1998), directed by Benoît Graffin. Maronna joined Local 52 IATSE in 2007 as an electrician and has since been working on films and TV in the NYC area, as always. He still lives in Brooklyn.