Trivia

When he was a young child, his mother worked for an organization for underprivileged adults. She often brought him to work and work-related functions because she wanted him to grow up to be thankful for what he had and to have the willingness to help others.

His stage name is derived from his real first name (Jonathan), his real middle name (Taylor), and his brother's middle name (Thomas).

Attended Harvard University for two years (2000-2002), then studied abroad for his third year at St. Andrews University in Scotland. He finally graduated from Columbia University in 2010.

Was the first actor to win the Lifetime Achievement Award at the Nickelodeon Kids' Choice Awards '99 (1999) for his memorable 8 year role as "Randy Taylor" on Home Improvement (1991).

In Home Improvement (1991), Jonathan played the middle child, Randy, while Zachery Ty Bryan played the oldest brother, Brad. Their characters were 13 months apart. In reality, Jonathan is older than Zachery by a month and a day (Jonathan was born on September 8, Zachery was born on October 9).

His mother was a social worker then she managed his career.

His father worked as a construction supplies salesman.

Pets: two cats named Simba and Samantha, one dog called McCormick

Doesn't like the nickname JTT. He doesn't understand why people just can't say his whole name.

Moved to Roseville, California, after Pennsylvania, and went to Sergeant Elementary before his parents got divorced. He moved to Sacramento with his mother to pursue his career.

Attends Columbia University Bachelor's Degree Program for adults General Studies.

Currently (2023) sits on the SAG-AFTRA National Board along with Patricia Richardson who played his TV mom.

Very good friends with Danielle Fishel, one of the stars of another hit ABC sitcom, Boy Meets World (1993). He attended her 2013 wedding.

Has done voice overs for cartoons and video games such as The Itsy Bitsy Spider (1994), The Adventures of Spot (1987), The Ivy Cottage, and Scooter's Magic Castle.

Ranked #25 in VH1's list of the "100 Greatest Kid Stars"

Graduated from Chaminade College Preparatory High School in West Hills, California with honors (2000)

Grew up in Sacramento and Los Angeles, California.

Parents: Claudine and Stephen Weiss (divorced in 1989). On his father's side, Jonathan is of Pennsylvania Dutch (German) descent, with small amounts of Swiss-German, Irish, and French, ancestry. One of his paternal ancestors, the Rev. Benjamin Weiss (1849-1901), was a minister in the German Reformed Church. Jonathan's mother is of at least part Portuguese descent.

Has one brother: Joel Thomas Weiss.

He was featured on a 2001 cover of "The Advocate" magazine, a gay and lesbian magazine, for his featured interview, to discuss, in part, his role in Common Ground (2000), a gay themed Showtime Networks movie.

Brother, Joel, is an Assistant Coach for a college in Louisiana.

(2007-2008) Enrolled in Columbia GS.

As of January 2000, is finishing his senior year of high school, and plans to enter college in the fall. He will likely attend either an Ivy League school, or Oxford University, and plans to double-major in theatre and history. He will continue to act during school vacations.

Loves to watch college basketball.

His grandmother's name was Helen Weiss and he has an uncle named Jeff Weiss, who is a playwright and actor.

Dog-Lhasa Apso. Cats-Tortoise Persian and Flamepoint Himalayan.

His brother is four years older than he.

Received 1996 NATO/ShoWest YoungStar of the Year Award. (1996)

Two nephews: Ben (b. 2005) and Jordan (b. 2007).

Visited Northwestern University, Evanston, Illinois, as a possible college to attend.

His mother attended Syracuse University.

Currently attending college. (April 2003)