At 6-foot-6, 210-pounds, with green eyes, gray hair with blond streaks and a goatee, Smith even looks like a movie star, his wife said. He has a 5-inch scar on his calf and a 4-inch scar on his inner right wrist.
"And he'll always wear his shades," Addeo said. "He embodies warmth and love and fun. This is who he is. People love connecting with Gavin."
Smith found his niche in the entertainment industry in film distribution for Fox, where he was a branch manager covering Oklahoma and Dallas.
"He's very good at what he does," Lisa said. "He's a great employee. He's very well loved."
That includes on the basketball court, where Addeo said he became a local celebrity growing up. He was recruited for UCLA, where he played on legendary coach John Wooden's final championship team in 1975.
Like his father did for him, he coached his sons in basketball and soccer and rarely missed one of their games.
"We have a tight-knit family," Lisa Smith said. "And we didn't really have a social life. Our social life is going to games and raising our family."
Evan Smith said his father would attend his USC games in his spare time, watch his middle son's high school basketball games or go on a hike with his youngest son.
"He's everything that I would want in a dad," Evan Smith said.
"I just want everyone to know that this is not just some man that's gone missing," he added. "This is a man that has a family that needs him back and that we are not going to stop until we find my dad."