This is, to the best of my recollection, the complete list of every musician I have jammed with. This list only contains physical meetings and thus none of the internet based collaborations are counted.
Andy Palladino
(Bass, Keyboards. First person that I ever jammed with, after I got my first guitar in December 2002. During The Slopin Fairy 7 and Scapegoat I had wanted him to play bass in my bands. He switched to keyboards in 2004)
Jeremy Roux
(Guitar, Acoustic Guitar, Bass, long time jamming musician. Our first time jamming together was in June of 2003 when I visited him in Paris, France. Last time in 2012.)
Catherine Julien
(Engineering and recording for most of the The Slopin Fairy 7 material)
Marie-Helene Julien
(Flute, vocals, guitar from The Slopin Fairy 7 on, although never got to record anything)
Tom Nunziata
(Guitar, Acoustic Guitar, jammed multiple times during the Red Cross days up til the Throne of Mortality days)
death metal kid from the New York Military Academy (Wladika?)
(Vocals, growling vocals during some The Slopin Fairy 7 jams, September-October 2003)
Mikey Bartz
(Guitar, jammed once in the winter/spring of 2004)
John Plungis
(Vocals, Scapegoat spring and summer of 2004)
Howard Eichenblat
(Vocals, Bass Throne Of Mortality, started jamming with him in the autumn 2004)
Benjamin Vanderschelden
(used to teach him how to play guitar when he and his family came over, over the span of a couple of years)
Phil Altobelli aka Darklink
(Guitar, Acoustic Guitar, Darklink in Triskalyon, also jammed many Vision Lunar and Vision Éternel songs together. Met in the late winter of 2005 (March perhaps)
Dan Maimone
(Drums, early summer of 2005, metalcore type of stuff.)
some girl
(Drums, for a punk rock band with above Dan on guitar, summer 2005)
Mike Obregon
(Drums, summer 2005, was in the band during the naming of Throne of Mortality)
Blair Gerold
(Bass, one pre-Throne of Mortality name jam in summer 2005)
Chris Obregon
(Bass, one pre-Throne of Mortality name jam in summer 2005)
Brandon Jacobs
(Guitar, some neo-classical jam in his basement, likely some time in late 2005)
Chris Banek
(Guitar, spring 2005)
Patrick Poblete
(Guitar, fall 2005)
James Brady, Drummer in Eimans metalcore band “Beneath the Dead Ring”
(Drums, winter 2005)
Vincent Pilon
(Guitar, jammed once or twice for Green Territory in August-September 2007)
Jean-Felix Verrette
(Guitar, one time jam in October 2007)
Dominic Baltazar
(Guitar, one time jam in October 2007)
Paul
(Guitar, one time jam in October 2007)
Josh McConnell
(Guitar, jammed once for solos in Vision Éternel, during late 2007)
Adam Kennedy
(Guitar, Acoustic Guitar, played solo guitars in Vision Éternel in January of 2008 and also jammed an acoustic session in the summer of 2008)
Nidal Mourad
(Acoustic Guitar, played acoustic guitar in Vision Éternel in January of 2008)
Charles Lemieux
(Guitar, few jams here and there (2007-2010)
Maxime Carron
(Guitar, one time jam in 2008 on Beaubien with Lamb of God stuff)
Patrick Duffy
(Acoustic Guitar, one time jam during a visit in NJ in April 2010)
Ivan Byrne
(Guitar, one time jam in July 2010 for post-metal band)
Alex Luca
(Bass, five-six jams in September and October 2010 for post-metal band)
Guillaume Fleurent
(Guitar, two jams for post-metal band in October 2010)
Antoine Trudel
(Drums, for Murder on Redpath, the Frostland Sludgecore band. From December 2010, to August 2011)
Patrick McDowall
(Guitar, two jams with one recording for post-metal band in February 2011)
Emily-Anne St-Amant
(Vocals, one time jam in March 2011 for post-hardcore band. Covered Texas is the Reason “Blue Boy” song)
Guy Gaffney
(Vocals, for Murder on Redpath, Came in June 2011)
Janie De Jeu
(Bass, try out for Murder on Redpath in July 2011)
Guillaume Duff
(Drums, jam for Murder on Redpath redux in December 9th 2013)