Is Aidan Gillen A-List?
No — Aidan Gillen is currently ranked B tier — a well-known figure with a strong career but not quite a household name.
Reached A-list in 2011
'Game of Thrones' Debut
Lost A-list status in 2018
Dropped to B tier — GoT character dies
Ranking Timeline
'Queer as Folk' Breakout
Role as Stuart earns critical acclaim.
Joins 'The Wire' cast
Starring in a highly regarded HBO series increases his visibility.
'Game of Thrones' Debut
Role as Littlefinger catapults him to international fame and significantly increases his earnings.
Continued GoT success
Continues to portray Littlefinger.
GoT character dies
GoT character gets killed off and ends the role.
Bohemian Rhapsody Appearance
Starring in the film increases visibility.
Steady Acting Career
Gillen maintains a steady career with roles in film and television.
Last updated: February 25, 2026