fair-haired boy
US /ˈferˌhɛrd bɔɪ/
UK /ˈferˌhɛrd bɔɪ/

1.
chouchou, favori
a person who is especially favored or preferred by someone in authority
:
•
He's the boss's fair-haired boy, always getting the best assignments.
C'est le chouchou du patron, il obtient toujours les meilleures missions.
•
The new intern quickly became the department's fair-haired boy.
Le nouvel stagiaire est rapidement devenu le chouchou du département.