The trio joins previously announced cast members Jack Reynor and Laia Costa.
Production is currently underway in Ireland and Spain on the Atomic Monster and Blumhouse film for New Line Cinema.
Cronin is also producing under his Doppelgangers banner.
From left: Veronica Falcón, May Calamawy and May ElghetyJeremy Davis; Tom Jamieson; Tim P. Whitby/Getty Images
Plot details remain under wraps but it is about a Mummy, and Im sure a tomb is involved.
She played Trader Sam opposite Emily Blunt & Dwayne Johnson in DisneysJungle Cruise.
Other notable film credits includeThe Starling,Days of Grace,Voyagersopposite Colin Farrell.
She also starred as Lupe Gibbs inPerry Masonopposite Matthew Rhys and John Lithgow.
Additional TV credits include Apple TV+Mr.
Cormanopposite Joseph Gordon Levitt, HBOsRoom 104& Ryan Murphys9.1.1.with Angela Bassett & Peter Krause.
Falcon is repped by IAG and Art2perform.
She can also be seen in Hulus Emmy-winning comedy seriesRamywhere she plays Dena.
Her upcoming work includes Duke JohnsonsThe Actoropposite Andre Holland and Gemma Chan.
Calamawy is repped by WME and Range.
Elghety is repped by SIZZLE Company.