Maggie Smith and other older actors were mentioned by Alan Rickman.
Alan Rickman's diary excerpts offer a surprising glimpse into his thoughts on his work on the Harry Potter movies.
He apparently had little respect for his role as the scornful Professor Snape and found the experience frustrating and tiring.
Rickman made comments about working on the hugely successful franchise, writing that he wanted to quit after the first two films.
However, the late actor stayed on to recount Snape's tale.
He was not impressed with how the older members of the cast were treated by the directors.
Producers outside of the young leads are Daniel Radcliffe, Emma Watson, and Rupert Grint.
In September 2004, Rickman made light of the possibility of a brand-new company called Glorified Extras, which would represent skilled elder performers.
In addition to the children, he claimed it would feature Maggie Smith, Michael Gambon, Robert Hardy, Miranda Richardson, Robbie Coltrane, and Frances de la Tour.
The numerous entries in Rickman's diaries show that he put a lot of overtime on the set to perfect the extended passages.
Although their careers would continue to grow after the series, Rickman harshly criticized the younger "Harry Potter" stars.