Odell was found unresponsive in his San Fernando Valley home Friday, the Los Angeles County Coroner's Office confirmed to Variety. News. The cause of death has not been determined, pending an autopsy.
The young actor also starred in the 2011 film Judy Moody and the Not Bummer Summer alongside Heather Graham.
At least for their part, initially, police sources say there is no sign of foul play.
In addition to his successful guest roles on hit TV series, Odell was also a successful singer and songwriter. He was reportedly in show business since the age of 12.
"The Odell family has lost our beloved son and brother, Jackson Odell", the family said in a statement emailed to TheWrap.
Jackson often posted covers of hit songs to his YouTube account.