Bernard Ludwig Black
Played By: Dylan Moran
The reclusive owner of the eponymous bookstore. He is a misanthropic, pessimistic, belligerent Irish alcoholic who hates both the job and the customers.
Played By: Bill Bailey
Bernard's shop assistant and flatmate. He is a skilled businessman, well liked by the customers.
Played By: Tamsin Greig
Bernard's best and oldest friend. In the first season owned a gift store next to Black Books, but the business went bankrupt and she was unemployed from then on.