The R of the title stands for the young protagonist, Rune, fearlessly played by Pilou Asbæk. Imprisoned for violent assault, he's a cocky, good-looking young man placed in the hardcore ward, where his survival depends on quickly learning the prison's parallel world of rules, honor, and obligations. R also stands for Rachid, a young Muslim prisoner who becomes Rune's friend and accomplice, defying the rigid racial stratifications among the inmates.

• Nordisk Film Denmark
• Pilou Asbæk
• Dulfi Al-Jabouri
• Roland Møller
• Jacob Gredsted
• Omar Shargawi
• Kim Winther
• Jorg Beutnagel
• Sune Nørgaard