the word for the wrong actor [closed]
Solution 1:
The usual way to say
Kim is the wrong actor for that part or role.
is
Kim is miscast in that role.
Lexico has miscast as a verb, above is the adjectival use of the verb.
miscast
VERB1 Allot an unsuitable role to (an actor)
he is badly miscast in the romantic lead
Lexico does not classify miscast as a noun and it would be very unusual to say
Kim is a miscast.
as if there is a similarity with misfit, which anyway is not used in this context.