Is Peter Gallagher A-List?
No — Peter Gallagher is currently ranked B tier — a well-known figure with a strong career but not quite a household name.
Reached A-list in 2003
"The O.C." Breakthrough Role
Lost A-list status in 2007
Dropped to B tier — "Californication" Recurring Role
Ranking Timeline
Broadway Debut
Begins acting career with theater roles, including Broadway.
"Sex, Lies, and Videotape"
Gains recognition for role in indie film.
"The O.C." Breakthrough Role
Breakthrough role as Sandy Cohen elevates his profile.
"Californication" Recurring Role
Appears in the popular TV show, gaining further exposure.
"Law & Order: SVU" Role
Lands recurring role in the long-running TV series.
"Grace & Frankie" Series Regular
Becomes a series regular in the comedy show.
Continued TV Roles
Continues to appear in various TV shows, staying active.
Versatile Acting Career
Maintains a steady career across TV, film, and theater.
Last updated: February 25, 2026