Ernesto Cloma "Jon Jon" Briones Jr. (born 7 August 1965; age 59) is a Filipino-American actor who played the Confederation Magistrate in the Star Trek: Picard second season episodes "Penance" and "Assimilation".
He is the father of Isa Briones, who primarily portrayed Soji Asha in the same series. His wife Megan and son Teo are also actors.
Briones is best known for his work in musical theater. He started his career in the original London production of Miss Saigon in 1989, and appeared in the play for many years in England, Germany, Phillipines, Asia, and in the US. He moved to the United States in early 2000s and became a naturalized US citizen in 2010.
Briones appeared in guest roles on television series such as Las Vegas (starring Nikki Cox), Sons of Anarchy (with Ron Perlman and William Lucking), Monk (2090, starring Ted Levine, Peyton List), Law & Order: LA (with Oded Fehr, Jim Beaver, and Jim Piddock), The Mentalist, Bones, Criminal Minds: Beyond Borders, Designated Survivor (with Zoe McLellan, Jake Epstein, Morgan Kelly, Keone Young, and Emily Coutts), and The Rookie (with Toks Olagundoye).
In 2018, Briones appeared in three episodes of American Crime Story, including one with his daughter. In 2020, he played a recurring role in Ratched, alongside Amanda Plummer.