Dave Grohl as Dave Grohl

Taylor Hawkins as Taylor Hawkins

Nate Mendel as Nate Mendel

Pat Smear as Pat Smear

Chris Shiflett as Chris Shiflett

Rami Jaffee as Rami Jaffee

Whitney Cummings as Samantha

Leslie Grossman as Barb Weems

Will Forte as Darren Sandelbaum

Jenna Ortega as Skye Willow

Jeff Garlin as Jeremy Shill

Kerry King as Krug

Marti Matulis as "The Caretaker"

Lionel Richie as Lionel Richie

John Carpenter as Engineer

Jason Trost as Tech

Jimmi Simpson as Venue Person

Mike Escamilla as Paramedic

Alexander Ward as Casey Dillinger / Dream Widow Band Member

Eli Santana as Dream Widow Band Member / Shadow Person

Aaron Valenzuela as Dream Widow Band Member / Shadow Person

Kayla Loadvine as Shadow Person

Ivan Kungurtsev as Shadow Person

Subskile as DJ (uncredited)

Steve Vai as Dave's Shredding Guitar Hands (uncredited)