Edit: Looked it up and there's Susumu Hirasawa's Forces and Forces II on the drama CD... It's gonna hit like a sack of bricks what with the canvas artwork and supposedly final chapters. I hope the voice cast is the one from the 97 anime.
It lists the cast at the link but only in Japanese:
Iwanaga Hiroaki (2016 anime, Guts)
Mizuhara Kaoru (2016 anime, Puck)
Hikasa Yoko (2016 anime, Farnese)
Okitsu Kazuyuki (2016 anime, Serpico)
Shimono Hiro (2016 anime, Isidoro)
Yukinari Toa (2016 anime, Casca)
Saitou Chiwa (2016 anime, Schierke)
Sakurai Takahiro (2016 anime, Griffith)
Canna Nobutoshi (90s anime, Guts)
Miyamura Yuko (90s anime, Casca)
Koyama Rikiya (2016 anime, Mozgus)
(+ more not included in list)
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