Unlike Krempe, whom Frankenstein finds intellectually and physically repulsive, Waldman proves a kind and understanding teacher. Frankenstein describes him:
This professor was very unlike his colleague. He appeared about fifty years of age, but with an aspect expressive of the greatest benevolence; a few grey hairs covered his temples, but those at the back of his head were nearly black. His person was short, but remarkably erect; and his voice the sweetest I had ever heard. (1.2.6)His lecture on the history of chemistry shows more sympathy for the alchemists who had excited Frankenstein's imagination, and from that time on, Frankenstein looks to him as a mentor and a "true friend" (1.3.1). It is Waldman who interests Frankenstein in modern chemistry (1.2.7).