The London revival of Clifford Odets’ classic American play “ Golden Boy ” at the Almeida Theatre has bulked out its cast while revealing a trailer of Josh O’Connor in the lead role. Joining the production alongside O’Connor, currently on cinema screens in “Disclosure Day,” are Jason Barnett (“Bridgerton,” “3 Body Problem”), Richard Fleeshman (Olivier nominated for “Company”), David Ganly (“The Crown,” “Moon Knight”), Patrick Martins (“Emma,” “Audrey or Sorrow”), Daniel Mays (BAFTA TV nominated