The cast of Jamsession - 1965 includes: Juhani Aalto as Himself
- Musician Juhani Aaltonen as Himself - Musician Claes Andersson as
Himself - Musician Freddy Andetsson as Himself - Musician Curt
Boucht as Himself - Musician Downtown Dixie Tigers as Themselves -
Musicians Bubi Grandell as Himself - Musician Carl Gustaf Nyman as
himself Jukka Haavisto as Himself - Host Tuomas Kalliala as Himself
- Musician Herbert Katz as Himself - Musician Matti Koskiala as
Himself - Musician Ylermi Kosonen as Himself - Musician Reiska
Laine as Himself - Musician Kalevi Lindroth as Himself - Musician
Markku Marttina as Himself - Musician Eero Ojanen as Himself -
Musician Esko Pajamies as Himself - Musician Timo Peltoniemi as
Himself - Musician Esko Rosnell as Himself - Musician Kauko Saari
as Himself - Musician Pekka Sarmanto as Himself - Musician Heikki
Sarmanto as Himself - Musician Antero Stenberg as Himself -
Musician Tapani Tamminen as Himself - Musician Pentti Vuosmaa as
Himself - Musician Rick Wahlstein as Himself - Musician