Ka, a Mandarin adoption of the beginning of the English word "cast," has recently entered the popular jargon vocabulary, and is largely used similarly to the English "list" when referring to a cast of players-A-ka being "A-list" and thus the main attraction, B-ka "B-list" or second fiddle, and C-ka the others.
「咖」來自英文 cast 的諧音，近來已成為電視上普遍的流行用語，用來指角色，A 咖指大牌，B 咖次之，C 咖則意指不重要的角色。