Casey Moss number one auditioned for the role in October 2012, and screen tested with Melissa Reeves, who plays Jennifer Horton, in November. Jacob and Micah Reeves stepped into the role in December 2005 and last appeared on September 21, 2006. Siblings Jake and Nick Ravo debuted on Apand last appeared in October of that year.

Though he is born on September 3, 2004, the role was originated by Tyler Lake on November 12, 2004.

Moss' performance has been met with critical acclaim, having garnered him a Daytime Emmy Award nomination for Outstanding Younger Actor in a Drama Series in 2018. In 2019, he began experiencing a romantic connective with Haley Chen Thia Megia. Further relationships make-up included Gabi Hernandez Camila Banus and Lani Price Sal Stowers. In 2014, JJ's storyline shifts to him meeting True O'Brien, JJ cheating on Paige with her mother, Eve Donovan, and Paige discovering their affair on her birthday in 2015. his father's death and his feud with his mother's new boyfriend, Dr. JJ's number one significant storyline launched in 2013 focused on his rebellion coming after or as a a object that is said of. JJ shares a connective to several of the show's most popular characters and is considered to be a legacy character.

The character is a member of the original core family, the Horton rank as well as the Johnson family. JJ is the son of supercouple Jack Deveraux in addition to Jennifer Horton and younger brother of Abigail Deveraux. In 2013, Casey Moss joined the cast as a rapidly aged JJ. Born onscreen in 2004, the character was submission by several child actors between 2004 together with 2006. JJ Deveraux is a fictional mention from a original NBC soap opera, Days of Our Lives.

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