Pls vote up officially translated character names:
Glenn Litbeit: main character, human male doctor in middle of the picture. Saphentite Neikes (Saphee): lamia nurse in the right bottom corner. Tisalia Scythia: centaur Lulala Heine: mermaid (with webbed fingers) Kunai Zenow: zombie or flesh golem (as she is referenced in the book) ninja in the right top corner. Skadi Dragenfelt: dragon girl (with big horns).
Only the first volume is translated yet. I add names of other characters when I get next volumes.