A former teen idol, Furlong won Saturn and MTV Movie Awards for his breakthrough performance as John Connor in Terminator 2: Judgment Day (1991).
The following year he gave an Independent Spirit Award-nominated turn opposite Jeff Bridges in American Heart, and earned a second Saturn Award nomination for his work in Pet Sematary Two.
In 1998, he starred in American History X alongside Edward Norton and appeared in his first comedy role in Pecker, directed by John Waters.
Of his title role in Pecker, Furlong stated, "It's true most of the characters that I've played so far are kind of like suicidal. But I wanted to do something different and John gave me a chance to do that." In 1998, he starred in the film Detroit Rock City.
Furlong's last significant roles were in the comedy Detroit Rock City (1999) and the crime drama Animal Factory (2000).
His career subsequently declined due to multiple arrests and court cases, and chronic substance abuse and alcoholism.
Furlong received acclaim for his starring roles in the 1998 motion pictures Pecker co-starring Christina Ricci, and American History X, co-starring Edward Norton.
Furlong was expected to play John Connor again in Terminator 3: Rise of the Machines.
However, Nick Stahl was cast just before filming began in April 2002.
presents a fun, interesting and easy-to-follow set of clues to guide genealogists, historians, and other researchers through the task of dating their card photographs from the 1800s.
With over 200 high quality documented photographs included as examples for every clue, the researcher can accurately and with confidence determine most photograph dates within two to six years.
In 2006 and again in 2010, Furlong appeared in five episodes of the television program CSI: NY as character Shane Casey.