Ben Stiller, Jack Black and Robert Downey Jr. K ; FBA WITH DEY. ; Jack Black como Jeff Portnoy. como Kirk Lazarus. - Jack Black - Ben Stiller - Comedy - Action - LRC Watch Party: Con La Reina Creole, Retro Nerd Girl, Rrr Mmm. Tropic Thunder () - Robert Downey Jr. Tropic Thunder: Ben Stiller, Jack Black, Robert Downey Jr. , Nick Nolte, Matthew McConaughey, Steve Coogan, Jay Baruchel, Danny McBride, Brandon T. Ben Stiller, Jack Black and Robert Downey Jr. lead an ensemble cast in "Tropic Thunder," an action comedy about a group of self-absorbed actors who set out. ; Robert Downey Jr. ; Steve Coogan como Damien Cockburn. . Ben Stiller como Tugg Speedman. ; Jay Baruchel como. lead an ensemble cast in 'Tropic Thunder,' an action comedy about a group of self-absorbed actors who set out. Jack Black, Ben Stiller & Robert Downey Jr In Tropic Thunder #boomchallenge #film #actors #film @KORBA ; layla<3. Jackson. The trio of stars talk about about reaching the heart of darkness — and ridiculousness! — on the set of their jungle-set action comedy.