Klaus Werner von Krupt
- Also known as
Appearances
- Hellboy: Seed of Destruction #1 — 1994-03-00
- Hellboy: Seed of Destruction #3 — 1994-05-00
- Hellboy: Seed of Destruction #4 — 1994-06-00
- Hellboy #[1] — 1994-10-00
- Judge Dredd Megazine #10 — 2002-04-30
- Hellboy: Seed of Destruction #[nn] — 2008-06-00
- Hellboy: One for One #1 — 2010-08-00
- Hellboy Omnibus #1 — 2018-05-09
- Hellboy: Seed of Destruction #1 25th Anniversary #[nn] — 2019-03-13
- Hellboy and the B.P.R.D.: 1952-1954 #[nn] — 2021-04-00