Question: Who played billy abbott on young and the restless?

Disambiguated questions and answers:
context: No context provided
question: Who played billy abbott on young and the restless from 1999-2002?
short_answers: Tom
David Tom
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question: Who played billy abbott on young and the restless from 2002-2003?
short_answers: Ryan Brown
Ryan Michael Brown
Brown
context: The role was recast with Ryan Brown, who debuted on December 26, 2002. During Brown's portrayal, rumors started circulating about his dismissal, but when Brown was actually fired, the producers said it was storyline dictated. He last aired on July 16, 2003. In 2006, it was announced that newcomer Scott Seymour would assume the role, debuting on August 15, 2006. However, Seymour was let go after only three months, and his final airdate was November 9, 2006. In 2008, Billy Miller assumed the role as the fourth actor to do so. He first aired on September 19, 2008. Miller won a Daytime Emmy Award for Outstanding Supporting Actor for his portrayal in 2010. In 2011, Miller announced that he would like to leave the series by the end of that summer. However, after months of contract negotiations, Miller agreed to one more year on the series. In November 2013, amidst contract negotiations, Miller opted to leave the soap opera, and it was announced that David Tom, who previously played Billy, would be returning to the role. Miller taped his final scenes on December 19, and last aired on January 30, 2014. Tom taped his first scenes back as Billy on January 7, and returned on February 3, 2014.
question: Who played billy abbott on young and the restless in 2006?
short_answers: Scott Seymour
wikipage: Billy Abbott
context: No context provided
question: Who played billy abbott on young and the restless from 2008-2014?
short_answers: William John Miller II
Billy miller
Miller
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question: Who played billy abbott on young and the restless in 2014-2016?
short_answers: Burgess Jenkins
Jenkins
context: No context provided
question: Who played billy abbott on young and the restless from 2016-2020?
short_answers: Thompson
Jason Thompson
Jason Craig Thompson

Long-form answers:
knowledge: content: Billy Abbott is a fictional character from American soap opera "The Young and the Restless", currently portrayed by Jason Thompson.
wikipage: Billy Abbott
content: In 1999, David Tom began portraying Billy as a teenager. 
wikipage: Billy Abbott
content: In 2002, Tom opted not to renew his deal with the soap and the role was recast with Ryan Brown, who only portrayed the role for a year.
wikipage: Billy Abbott
content: In 2006, Scott Seymour became a second recast for the character; however, he too was let go after three months.
wikipage: Billy Abbott
content: Two years later in 2008, Billy Miller was cast in the role, who portrayed the role until his exit in 2014.
wikipage: Billy Abbott
content: In 2014, Tom returned to the role following Miller's exit; his return was short-lived when he was replaced by Burgess Jenkins the same year.
wikipage: Billy Abbott
long_answer: Billy Abbott is a fictional character from American soap opera "The Young and the Restless", currently portrayed by Jason Thompson. David Tom began portraying the character from 1999 until 2002, when he was recast with Ryan Brown. The character was recast again in 2006 with Scott Seymour, but was let go after three months. In 2008, the character was recast with Billy Miller until 2014, when Burgess Jenkins took over the role.