Rafe Spall and Toby Jones also recently boarded the film. Chris Pratt and Bryce Dallas Howard are returning to star in the second installment.
Sources say Smith will be playing a young scientist in the movie.
J.A. Bayona will direct with Frank Marshall producing, along with Pat Crowley and Belén Atienza. Colin Trevorrow, who helmed “Jurassic World,” penned the script with his writing partner, Derek Connolly. Trevorrow will also exec produce with Steven Spielberg.
“Jurassic World” blew away box office records last year, scoring the biggest domestic debut of all time with $208.8 million. The film went on to haul $1.7 billion worldwide — including $652.3 million in the U.S. — making it the fourth highest-grossing movie in history, domestically and worldwide.
Smith was the breakout star of the Netflix music drama “The Get Down” from director Baz Luhrmann. He will next appear in the Off-Broadway play “Yen” at the MCC Theater opposite “Manchester by the Sea” star Lucas Hedges.
He is repped by WME and Kohl Group.