Personal life

Walker lived in Santa Barbara with his dogs.^[5][19] He and Rebecca McBrain,^[20] a one-time girlfriend,^[21] had a daughter^[22] who lived with her mother in Hawaii for 13 years and then moved to California to live with Walker in 2011.^[23] He held a brown belt in Brazilian jiu-jitsu under Ricardo "Franjinha" Miller at Paragon Jiu-Jitsu^[24] and was awarded with his black belt by Miller posthumously.^[25]
Walker's first passion was marine biology; he joined the Board of Directors of The Billfish Foundation in 2006.^[26] He fulfilled a lifelong dream by starring in a National Geographic Channel series Expedition Great White (later retitled Shark Men), which premiered in June 2010.^[27][28] He spent 11 days as part of the crew, catching and tagging 7 great white sharks off the coast of Mexico. The expedition, led by Chris Fischer, founder and CEO of Fischer Productions, along with Captain Brett McBride and Dr. Michael Domeier of the Marine Conservation Science Institute took measurements, gathered DNA samples, and fastened real-time satellite tags to the great white sharks. This allowed Dr. Domeier to study migratory patterns especially those associated with mating and birthing over a 5-year period of time.^[29]
In March 2010, Walker went to Constitución, Chile to offer his help and support to the people injured in the 8.8 magnitude earthquake that struck on February 27. He flew with his humanitarian aid team, REACH OUT Worldwide, to Haiti to lend a helping hand to the 2010 Haiti earthquake victims.^[30]

Walker drove a Nissan Skyline GT-R in 2 Fast 2 Furious.

An avid car enthusiast, he competed in the Redline Time Attack racing series in which he raced an M3 E92 and was on the AE Performance Team. His car was sponsored by Etnies, Brembo Brakes, Ohlins, Volk, OS Giken, Hankook, Gintani, and Reach Out Worldwide.^[31] Walker had been preparing for an auto show prior to his death.^[32]
Roger Rodas became Walker's financial adviser in 2007 and helped to establish Reach Out Worldwide.^[33] Rodas was the CEO of Always Evolving, a Valencia high-end vehicle performance shop owned by Walker.^[34] he shared a close friendship with Tyrese Gibson.^[35]