|Alias(es)||UA, Mr. Urb, Erik Jonucz|
|Location||San Diego, California, USA 32° 43' 2.71" N, 117° 9' 45.98" W|
|Team||* California Ronin (founder)|
* XJL (former)
|Affiliates||Sheer (wife/teammate), Mr. Xtreme, The Grim, Vigilante Spider, Bearman, Blue Alpha, Blue Buzzard, Divine Force|
|Equipment||Bulletproof vest, power bocks, nunchaku|
|Abilities||4 ft. leap, 20 mph run|
Urban Avenger was a former crime victim before realizing after that incident and watching the movie Kick-Ass, he wanted to become an RLSH. Eventually, he created his signature red and black gimmick, and began patrolling San Diego. Urban Avenger also says that he keeps his being a RLSH a secret from his friends and family.
He was the second member to join the San Diego-based Xtreme Justice League in the fall of 2010. In what the XJL called a "professional and amicable" separation, Urban parted ways with the XJL in late 2013 to form his own group, the Urban Alliance (which later became the California Ronin in solidarity with Dark Guardian's New York Ronin team).