The phrase "actors maintained" is correct and usable in written English.
It can be used when discussing the actions or positions held by actors, particularly in the context of a performance, a study, or a discussion about their roles.
Example: "In the debate, the actors maintained their positions despite the opposing arguments presented."
Alternatives: "performers upheld" or "participants asserted".
The collapse of the feudal order with the Meiji Restoration (1868) threatened the existence of Noh, though a few notable actors maintained its traditions.
Some people in the theater industry, particularly actors, maintained that official protection was the only way to prevent the loss of more houses.
A boatful of esteemed actors maintained a stony countenance as the chilly Atlantic filled their shoes, and their colleagues at Downton Abbey were stoic as they zipped through the great war in a week and a couple of them died of flu.
Different actors maintained unique roles, depending on mandate.
The show is dated now, but original fans will scarf this up and newcomers will be tickled by how hep it tried to be and the fact that the actors maintained their dignity throughout (a crucial factor in the show's success).
After applying makeup to the cast, the makeup artist spends the remainder of the day on the set helping the actors maintain a consistent look.
When popular protest and military action coincide to remove an incumbent, it is common to see military actors maintain that they are merely the instrument of the popular will.
All the performances in The Second are very good, the actors maintaining cold-hearted realism as Stephen Lance's screenplay throws them a few too many literary quotes and allusions.
We notice that, while many actors maintain the same role in static and dynamic analysis, some display striking differences.
Environmentalists, local communities, and civil actors maintain that hydrofracking in its current unregulated form is intolerable for our environment and public health.
Before I rant on--perhaps feeling the after-effects of the unnecessary but prevalent ranting that distinguishes (well, not distinguishes) Brooks' mounting--I should note that several actors maintain their thespian dignity in the account of what happens on the few days life becomes unbearable for too many of a troubled Russian country estate's inhabitants and visitors.
