To play the role of the strict or unpopular person when resolving a conflict or managing others; often used of a parent or superior who is harsh while another plays the role of a kind mediator.

to play the role of the villain or the strict person in a strategy or situation, often in contrast to someone playing a more sympathetic role

a face with dark or black skin; often used to describe a tanned or naturally dark complexion

a bird species of southern China and Southeast Asia (Pterorhinus perspicillatus)

a species of large white waterbird with a distinctive black face and a spoon-shaped bill

A two-part allegorical saying meaning to show no favoritism. Like the legendary official Bao Zheng (Bao the Black-Faced), who judged cases with strict impartiality and ignored personal ties or social status when enforcing the law.

(bird species of China) black-faced warbler (Abroscopus schisticeps)