This is the common name thread for actor Pietro Martellanza / Peter Martell / Michel Marcel
CLT:
"Pietro Martellanza" is credited in the following 23 titles (31 profiles)
"Peter Martell" is credited in the following 29 titles (64 profiles)
"Michel Marcel" is credited in the following 2 titles (2 profiles)

Pietro Martellanza (7 unconfirmed, 9 invalid):
Gli esecutori / The Executors / Street People
Der Hexentöter von Blackmoor
Il pistolero dell'Ave Maria / Gunman of Ave Maria / Forgotten Pistolero
Ciakmull - L'uomo della vendetta / The Unholy Four / Chuck Moll
La morte accarezza a mezzanotte / Death Walks at Midnight
Debris Documentar
Due croci a Danger Pass / Two Crosses at Danger Pass
Casa d’appuntamento / The Paris Sex Murders / Murder on 17th Avenue
Dove si spara di più / Ultimate Gunfighter / Ride for a Massacre / Fury of Johnny Kid
Il lungo giorno del massacro / The Long Day of the Massacre
Dio li crea... Io li ammazzo! / God Made Them... I Kill Them
Killer Barbys vs. Dracula
Tears of Kali
Probabilità zero / Probability Zero / Heroes Never Die / Possibility Zero
I lunghi giorni dell’odio / This Man Can't Die / Long Days of Hate
Die Stoßburg / Clattering Chastity Belts

Peter Martell (9 confirmed, 10 unconfirmed):
I lunghi giorni dell’odio / This Man Can't Die / Long Days of Hate (confirmed by ninso4)
Il pistolero dell'Ave Maria / Gunman of Ave Maria / Forgotten Pistolero (confirmed by ninso4)
Casa d’appuntamento / The Paris Sex Murders / Murder on 17th Avenue (confirmed by ninso4)
Dio li crea... Io li ammazzo! / God Made Them... I Kill Them (confirmed by ninso4)
Der Hexentöter von Blackmoor (confirmed by ninso4)
La morte accarezza a mezzanotte / Death Walks at Midnight (confirmed by ninso4)
Chiedi perdono a Dio... non a me / May God Forgive You... But I Won’t / Cjamango: The Revenger
Dove si spara di più / Ultimate Gunfighter / Ride for a Massacre / Fury of Johnny Kid (confirmed by ninso4)
Il cobra / The Cobra / Female Cobra
Il pianeta errante / War Between the Planets / Planet on the Prowl
Killer Barbys vs. Dracula
Melancholie der Engel / The Angels' Melancholia
2 once di piombo / My Name Is Pecos
Dos hombres van a morir / Ringo the Lone Rider
Safari Express
Tears of Kali (confirmed by ninso4)
Liebesgrüße aus der Lederhose II. Teil: Zwei Kumpel auf der Alm
Due croci a Danger Pass / Two Crosses at Danger Pass
Ciakmull - L'uomo della vendetta / The Unholy Four / Chuck Moll (confirmed by ninso4)

Michel Marcel (1 unconfirmed):
Laß jucken, Kumpel 3. Teil - Maloche, Bier und Bett