"Scorcher" is directed by a character named "T.J. "Tropic" Thunderman", played by Ben Stiller. The cast of "Scorcher" includes:
* T.J. "Tropic" Thunderman (Ben Stiller)
* Damien Cockburn (Steve Coogan)
* Jeff "The Kid" Portnoy (Jay Baruchel)
* Kevin Sandusky (Jack Black)
* Alpa Chino (Brandon T. Jackson)
* Four Leaf Taylor (Robert Downey Jr.)
* Rick Peck (Matthew McConaughey)
"Hooked on Speedman" is a fictional action movie within "Tropic Thunder", with a character named "Speedman" (Robert Downey Jr.) playing a character named "Link".
The "Hooked on Speedman" scenes are meant to be a parody of action movies, particularly the "Speed" series starring Keanu Reeves.
While Robert Downey Jr. appears as the actor "Speedman" within the film, "Hooked on Speedman" itself does not have a separate cast listing as it is a fictional movie within the film.