About the Hosts

In Travel Channel’s Thrill Factor, Kari Byron reunites with Tory Belleci to explore the exciting world of thrill rides, waterslides and other heart-pumping experiences through a scientific lens. Sharing a passion for travel, adventure and science, the co-hosts dive into the engineering, physics and biomechanics that explain why these amazing rides excite adrenaline junkies across the country.

man, woman, posing for picture, daytime
Kari Byron and Tory Belleci pose for a picture during the filming of Thrill Factor

Kari Bryon

Kari Byron began her career as a sculptor and painter, holding successful exhibitions at some of San Francisco's leading galleries. Her sculpting skills and her interest in less traditional jobs led her into the field of model-making and toy prototyping. She interned for Jamie Hyneman at M5 Industries, which led to a full-time job and the beginning of her television career.

In 2004, Kari joined Season 2 of Discovery Channel’s MythBusters as a co-host with Tory Belleci and Grant Imahara. They became known as “the Build Team” and worked with Jamie and Adam Savage to test the plausibility of various myths. In 2010, Kari hosted Science Channel’s Head Rush, a spin-off of MythBusters that focused on science education. From 2011 to 2013, she co-hosted Science Channel’s Punkin Chunkin with Tory and Grant. After that, in 2014, she became the host of American Express’ Everyday Genius web series, which puts everyday life hacks to the test and shares the best ones.

Kari has spoken around the world about the role of STEM (science, technology, engineering and mathematics) in entertainment, and she recently provided commentary at the 2014 White House Science Fair with Bill Nye. She earned a Bachelor of Arts in film and sculpture from San Francisco State University, graduating magna cum laude. She currently lives in San Francisco with her husband and daughter.

Tory Belleci

Tory Belleci has been in the entertainment industry since 1994, working behind the scenes. He was a stage manager at M5 Industries and quickly moved up the ranks. In 1997, he began working at Industrial Light & Magic, building models for such films as Star Wars: Episode I – The Phantom Menace and Star Wars: Episode II – Attack of the Clones. Some of his models include the pod racers and Federation battleships. Tory worked at ILM for 8 years as a model builder, sculptor and painter. His special effects and artwork can also be seen in Bicentennial Man, Galaxy Quest, The Matrix, The Matrix Reloaded, The Matrix Revolutions, Monkeybone, Peter Pan, Scooby-Doo, Sphere, Starship Troopers, Terminator 3: Rise of the Machines and Van Helsing. Tory has written and directed his own short films as well, including 1999’s Sand Trooper, which played at the Slamdance Film Festival and aired on the Syfy Channel.

In 2003, Tory worked off-camera for Discovery Channel's MythBusters, building sets and test objects. He joined Season 2 of the series as a co-host with Kari Byron and Grant Imahara. They became known as “the Build Team” and worked with Jamie Hyneman and Adam Savage to test the plausibility of various myths. From 2011 to 2013, he co-hosted Science Channel’s Punkin Chunkin with Kari and Grant. He has also appeared as a celebrity judge on Food Network’s Iron Chef and Fox’s Hell's Kitchen, and he can be seen exploding things on his own web series, Blow It Up!

Tory graduated magna cum laude from San Francisco State University’s film school. In 2010, he volunteered in Haiti after the earthquake, visiting orphanages and installing clean-water systems with the nonprofit organization LifeGivingForce. Tory currently lives in San Francisco.

The Hot List

Explore America’s most stunning scenery.
Join the conversation on Social Media!
Stay updated on the latest travel tips and trends.
Follow Us Everywhere

Join the party! Don't miss Travel Channel in your favorite social media feeds.

Photo courtesy of Disney
Next Up

About the Show