David Harbour Joins John Rambo

Harbour joins Noah Centineo, who will portray the young one-man fighting force.

The role of Trautman was famously originated by Richard Crenna in the original film series.

Lionsgate and Millennium Media are producing the prequel, which is expected to be a gritty action-adventure.

Harbour's casting follows his successful run on television and his upcoming return to the Marvel Cinematic Universe.