Sean Rodriguez Marquette, at the age of five, landed his first series role on the Emmy award winning daytime soap, "All My Children". He was born in Dallas, Texas, lived in New Jersey and New York during his role on this soap, and then moved to California.

His film and TV credits are extensive. Sean is often remembered as young Mark Ruffalo, in "13 Going on 30", starring Jennifer Garner. He branched out into theater in 2007, and was cast as "Timms" in the play, "The History Boys", that ran at the Ahmanson Theater. This was based on the National Theater's production directed by Paul Miller. It was part of the Mark Taper Forum's 41st season. Sean was the comic relief lead in films "High School" and "Sundown" opposite actors Matt Bush and Devon Werkheiser respectively. Sean also does voice-over work and was a series regular on several Animated series for Disney, but most notably six seasons as "Mac" on Cartoon Network's, "Foster's Home Of Imaginary Friends."

Most recently, Sean has recurred as "Johnny Atkins" on ABC's, "The Goldbergs", and has also crossed over as the same character, on the spin-off series, "Schooled", for its two seasons. Sean has worked alongside a wealth of talented actors including Wendy McLendon-Covey, Jeff Garlin, Sean Giambrone, Tim Meadows, Brett Dier, and AJ Michalka.