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What rules govern how TV show opening credits are structured?
In opening credits for TV shows, why does it say ‘with so and so’ for some actors?
In the credits of Seinfeld series I noticed that Jason Alexander is listed as 'Jason Alexander as George'. While others are listed with just their names and their character name is left out. "Jerry Seinfeld", "Julia Louis-Dreyfus", and "Michael Richards".
I Googled for 'Seinfeld credits Jason Alexander George' and found In the Seinfeld credits, why does it say "Jason Alexander as George" when no one else has as after their name? It says a lot of TV shows do that and may be it is because their name is last.
Still I find it odd. They could have gone with 'Michael Richards as Cosmo Kramer' and put Jason Alexander as third in the credits.
Is there any trivia that I'm missing on this?