CharacterClark (first name unknown) (introduction), Sir Edward (introduction, Clark (cameo), Ilsa Haupstein (flashback) (cameo), part origin), Roderick Zinco, Irra-Jahad, Sadu-Hem (introduction), Langdon Everett Caul (introduction, Bud Waller (death), Unmensch, Bud Waller (introduction), Langdon Everett Caul, Vladimir Giurescu, Father Edward Kelly (introduction, Cameo, Grigori Rasputin (first appearance in Hellboy series), see Notes), Kriegaffe (introduction), Herman von Klempt, Trevor Bruttenholm (introduction), Klaus Werner von Krupt (introduction), Koku (introduction), Belili-Jahad, other BPRD personnel (Bureau of Paranormal Research and Defense), 1st Sgt. George Whitman (introduction), Tom Manning (introduction), Tom Manning, Liz Sherman, Trevor Bruttenholm (flashback) (cameo), Namrat-Jahad, Emma Cavendish (introduction), Elihu Cavendish (introduction, Ogdru-Jahad (the Dragon, Leopold Kurtz (corpse), death), Kate Corrigan (introduction), Azzael (introduction), Prof. Dr. Karl von Klempt (cameo, Ilsa Haupstein, Grigori Rasputin (flashback), Klaus Werner von Krupt (flashback), Karl Ruprect Kroenen, unnamed) (introduction, Ilsa Haupstein (cameo), Karl Ruprect Kroenen (cameo), the Baba Yaga, Kriegaffe (cameo, Hellboy, Hellboy (introduction), Ilsa Haupstein (introduction), Flashback, Hecate, Baba Yaga (cameo, Sir Edward Grey (image only, Langdon Everett Caul (cameo), Sidney Leach, Malcolm Frost (introduction), Karl Ruprect Kroenen (apparent death), Baba Yaga, Sven Olafsen (introduction, introduction), Kate Corrigan (cameo), Dagda, William Grenier (introduction, Abe Sapien, Liz Sherman (introduction), Grigori Rasputin (destruction of physical form), Unmensch (introduction, Grigori Rasputin (origin), Leopold Kurtz (introduction), Hellboy (part origin), Seven Beasts), Leopold Kurtz (flashback) (cameo), Anubis (first appearance in Hellboy series), Kate Corrigan, Leopold Kurtz, Grigori Rasputin, Seven Beasts) (Adad-Jahad, Sven Olafsen (transformed), Nunn-Jahad) (image, Cynthia Eden-Jones (introduction), Philip of Bayeux (flashback), Roderick Zinco (apparent death), Vladimir Giurescu (image only, Roderick Zinco (introduction), Herman von Klempt (apparent death), Sadu-Hem, Vladimir Giurescu (flashback, origin), Klaus Werner von Krupt (cameo), Amon-Jahad, Hecate (first appearance in Hellboy series), Tom Manning (see Notes), Nunn-Jahad), Sven Olafsen (death), first appearance in Hellboy series), flashback), Abe Sapien (introduction, Abe Sapien (cameo), Elihu Cavendish (cameo), Clark (death), Leopold Kurtz (death), Hans Ubler (Howard Steinman) (introduction, Introduction, Torch of Liberty, Karl Ruprect Kroenen (introduction), Hellboy (revelation of true name and supposed destiny), Elihu Cavendish, Nergal-Jahad, Klaus Werner von Krupt (flashback) (cameo), Karl Ruprect Kroenen (flashback) (cameo), Sven Olafsen, Emma Cavendish (death), Roger the Homunculus, Sidney Leach (introduction), Herman von Klempt (introduction), Roger the Homunculus (introduction), Elder Giurescu (Vladimir Giurescu's father
Series TitleHellboy Omnibus