Is Jason Alexander A-List?
No — Jason Alexander is currently ranked B tier — a well-known figure with a strong career but not quite a household name.
Reached A-list in 1998
*Seinfeld* Finale
Lost A-list status in 2000
Dropped to B tier — Post-*Seinfeld* Roles
Ranking Timeline
Broadway Debut
Jason Alexander makes his Broadway debut in *Merrily We Roll Along*.
Tony Award Winner
Wins a Tony Award for *Jerome Robbins' Broadway*, boosting his profile.
*Seinfeld* Casting
Cast as George Costanza in *Seinfeld*, a breakthrough role.
*Seinfeld* Finale
*Seinfeld* ends its run, making Alexander a household name and wealthy.
Post-*Seinfeld* Roles
Takes on various TV and stage roles, maintaining his career.
Guest Appearances
Appears in numerous TV shows and films, staying relevant.
Established Career
Continues to work steadily in television and theater, maintaining a respected career.
Last updated: February 25, 2026