Chris Spradlin (born December 24, 1979) is an American professional wrestler, better known by his ring name Chris Hero. He is signed to WWE, working in its developmental territory Florida Championship Wrestling (FCW) under the ring name Kassius Ohno. Hero was previously a mainstay of many independent wrestling promotions, including Pro Wrestling Guerrilla and Ring of Honor as well as Pro Wrestling Noah in Japan. He is also known from his time in Independent Wrestling Association Mid-South, Combat Zone Wrestling and Chikara, where he was the co-head trainer of the Chikara Wrestle Factory. Hero is also a former three-time world champion having held the CZW World Heavyweight Championship, the PWG World Championship and the wXw World Heavyweight Championship.

After graduating from Northmont High School in Clayton, Ohio, Spradlin decided to train as a professional wrestler in the summer of 1998. After undergoing some initial training in Middletown, Ohio, Spradlin debuted on September 12, 1998 in Xenia, Ohio wrestling Shawn "HeartThrob" Halsey in the Unified Championship Wrestling promotion. Spradlin's initial training in Middletown was under the supervision of a small time promoter named Gary Goffinet. Spradlin trained for a little while alongside his friend, Adam Ghazee, under a wrestler by the name of Bo Dacious. Bo had trained previously under Charlie Fulton at the Monster Factory. At the suggestion of Matt Stryker, Spradlin underwent further training at Les Thatcher's Cincinnati-based HWA Main Event Wrestling Camp between May 1999 and November 1999. In December 1999, he traveled to Ocala, Florida to train under Dory Funk, Jr. at the Funkin' Conservatory professional wrestling school.