Seinfeld credits - Jason Alexander as George

From TV Tropes:

As a way to draw special attention to the last actor on the list, their name will often be bracketed with an additional annotation, such as "With", "And", or "And Starring".

Sometimes, this would be elaborated even further, giving the name of the character portrayed by the actor.

In the past, this was reserved for either the star of the show, a cast member who is not part of the "primary" ensemble, or a big name doing a cameo. Over time, as stars and their agents learned about the power of marketing, it has become an increasingly important bargaining point.

[...]

The credits of Seinfeld ended with "And Jason Alexander as George", as he had arguably the highest profile as an actor of the four principals.

Jason Alexander was on Broadway before doing Seinfeld, and in 1989 he won a Tony Award (Best Actor in a Musical ) for his perfomance in Jerome Robbins' Broadway.