Marvin John Nance (December 21, 1943 – December 30, 1996), known professionally as Jack Nance and occasionally credited as John Nance, was an American actor of stage and screen, primarily starring in offbeat or avant-garde productions. He was known for his work with director David Lynch, particularly for his roles in Eraserhead, Blue Velvet and Twin Peaks. Description above from the Wikipedia article Jack Nance, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Eraserhead
(Henry Spencer)
Lost Highway
(Phil)
Blue Velvet
(Paul)
Tricks of the Trade
(Al)
Dune
(Nefud)
Barfly
(Detective)
Whore
(Man Who Helps Liz)
Little Witches
(Father Michae)
Meatballs 4: To the Rescue
(Neil Peterson)
The Hot Spot
(Julian Ward)
Pretty as a Picture: The Art of David Lynch
(Self)
Love and a .45
(Justice Thurman)
City Heat
(Aram Strossell)
Ghoulies
(Wolfgang)
Motorama
(Motel Clerk)
Colors
(Officer Samuels)
I Don't Know Jack
(Self)
Eraserhead Stories
(Self / Henry Spencer (archive footage))
Bushman
(Felix)
Jump
(Ace)
The Cowboy and the Frenchman
(Pete)
Sinema
(Henry Spencer)
The French as Seen by…
((Segment "The Cowboy and the Frenchman"))
Wild at Heart
(00 Spool)
The Secret Agent Club
(Doctor)
Jonathan Ross Presents for One Week Only: David Lynch
(Self)
The Blob
(Doctor)
Voodoo
(Lewis)
The Demolitionist
(Father McKenzie)
Hammett
(Gary Salt)
Johnny Dangerously
(Priest)
Breaker! Breaker!
(Burton)
Across the Moon
(Old Cowboy)
Another Midnight Run
(Reilly)
Assault on Dome 4
(Mellow, Dome 4 Oldtimer)
Twin Peaks
(Pete Martell)
The Short Films of David Lynch
(Pete)
I Know Catherine, The Log Lady
(Self (archive footage))
David Lynch: Don't Look at Me
(Self)
No Frank in Lumberton
(Self)
Fools
(Hippie)
Twin Peaks: The Missing Pieces
(Pete Martell)
Twin Peaks
(Pete Martell)
My So-Called Life
(Warren)
Twin Peaks
(Pete Martell (archive footage))
Fallen Angels
(Sheriff)