Sylvester Stallone To Star In Fox Series RAMBO: NEW BLOOD?? Read the full article on AICN I am – Hercules!! “Rambo: New Blood” is only in development, but if it goes to series the plan appears to be that Stallone will play John Rambo in every episode. In the series Rambo will be joined by Rambo’s son J.R., a former Navy SEAL. The pilot will be written by Jeb Stuart, who co-wrote 1988’s “Die Hard” and 1993’s “The Fugitive,” two of the best action thrillers ever made.