The principal characters meet once again in their true identities.
For one thing, the principal characters are not physically present.
After Richard's death, he becomes the principal character in the series.
The principal characters are two men in their early 70's.
As the principal character, Michael has been featured in every episode of the series.
And you see this in each of the principal characters.
They usually play the principal characters in the film and have the most screen time.
The principal character in the book "is defined entirely by his writing."
As such, he became one of the principal characters in the series.
The three principal characters deal with the real in quite distinct ways.