Sean Marquette

Sean Marquette is an American actor. He is best known for his portrayals of Young Matt Flamhaff in 13 Going on 30, Johnny Atkins in The Goldbergs and Schooled, and for voicing Mac in the Cartoon Network animated series Foster's Home for Imaginary Friends (2004–2009).

13 Going on 30
High School
Full-Court Miracle

Foster's Home for Imaginary Friends

Malcolm in the Middle · S2, E3

Lois' Birthday

Lois runs away from home after her husband forgets her birthday and the boys buy candy instead of a gift.
NCIS: Los Angeles · S4, E4

Dead Body Politic

When a U.S. senatorial candidate's staffer is run over and killed while crossing the street, the team must determine if it was an accident or a murder than could put others in danger.
Ghost Whisperer · S5, E20

Blood Money

Melinda is in danger while investigating an unsolved kidnapping.
In Plain Sight · S3, E1

Father Goes West

Mary investigates the possibility that one of her witnesses has returned to a life of crime; Marshall searches for the person who shot Mary.
Monk · S6, E6

Mr. Monk and the Buried Treasure

Monk finds himself in trouble when he helps his psychiatrist's son follow a treasure map.
NCIS · S10, E23

Double Blind

An investigator (Colin Hanks) from the Department of Defense scrutinizes the team's response to the Bodnar case; the team must determine whether a petty officer is suffering from paranoia when he claims he is being followed.

Sean Marquette

Movies

Kids & Family

Guest Appearances