Apothecary Berard

Apothecary Berard is a worgen found in Pyrewood Village in Silverpine Forest. Before he was transformed into a worgen when Arugal cast his wretched magic on the forest, he was a Forsaken of the Royal Apothecary Society. He studied an ancient plague that killed off all the aquatic life in Lake Lordamere ages ago, and compiled his notes in his journal.

Speculation
Berard the Moon-Crazed is probably the same person since they're both situated in Silverpine.