Kato Kaelin net worth: Brain "Kato" Kaelin is a TV and radio personality who has a net worth of $500 thousand. Kato Kaelin came to fame as a witness at the infamous murder trial of O.J. Simpson. From childhood, Kaelin became known as 'Kato' after a character from the TV series The Green Homet. While a student at Wisconsin Eau-Claire University, Kaelin set up his own talk show called Kato and Friends on campus. Although he did not graduate, Kaelin moved in Hollywood to pursue a presenting career. Kaelin became a talk host on KLSX in Los Angeles during the mid-nineties. Prior to that, Kaelin appeared in low-budget films, starring in the 1989 crime movie Night Shadow and the 1990 production Beach Fever. Kaelin also made several TV guest appearances in comedy sketches during the mid-nineties, including MADTv and Mr Show. Despite his TV and radio career, Kaelin is better known as a witness of O.J. Simpson murder trial in 1994-95. Kaelin was later deemed as an unreliable witness due to inconsistent testimonies. Since then Kaelin was at the center of many comedienne's jokes. In recent years, Kaelin is a regular on reality TV, appearing in Celebrity Boot Camp, Sunset Tan and Gimme My Reality TV show. He was a co-host for daytime TV show, Eye for an Eye in 2005-2006.