• 
  Marco Vicario

  regizor
• 
  Antonio Margheriti

  regizor

• 
  Laura Dean
• 
  John Saxon

  Norman Hopper
• 
  Renzo Marignano

  Dr. Morris
• 
  May Heatherly

  Helen
• 
  Giovanni Lombardo Radice

  Charlie Bukowski
• 
  Luca Venantini

  Bobby

• 
  Ted Rusoff

  Dr. Phil Mendez
• 
  Tony King

  Tom Thompson
• 
  Venantino Venantini

  Lieutenant Hill
• 
  Edoardo Margheriti

  Ofiţer de poliţie
• 
  Susan Spafford

  Jane Hopper
• 
  Jere Beery

  Biker Leader
• 
  Cinzia De Carolis

  Mary (as Cindy Hamilton)

• 
  Tony King

  Tom Thompson
• 
  John Geroson

  Policeman
• 
  Ramiro Oliveros

  Dr. Phil Mendez (as Ray Williams)
• 
  Vic Perkins

  Biker
• 
  Joan Riordan

  Aunt Tina
• 
  Ronnie Sanders

  Orderly
• 
  Lonnie R. Smith Jr.

  Biker (as Lonnie Smith)
• 
  Elizabeth Turner

  Jane Hopper
• 
  Wallace Wilkinson

  Captain McCoy

• 
  Giorgio Serrallonga

  montaj
• 
  Giannetto De Rossi

  make-up department
• 
  Edmondo Amati

  producător
• 
  Maurizio Amati

  producător
• 
  Ottaviano Dell'Acqua

  cascador
• 
  Marco Vicario

  scriitor
• 
  Antonio Margheriti

  scriitor