Final answer:
The inquiry appears to be about the different categories of casts, possibly in a theatrical context like Kabuki plays. There are three main categories of Kabuki plays: Jidaimono (historical dramas), Sewamono (domestic dramas), and Shosagoto (dance plays).
Step-by-step explanation:
The four major categories of casts can refer to different things in different contexts, such as medical casts for broken bones or the casts of characters in a play. However, since this context is unclear and the reference material provided talks about types of Kabuki plays, which is related to the arts, it's possible there is some confusion in the question.
In case the question refers to Kabuki theatre, which is a traditional Japanese form of drama, there are actually three main categories of Kabuki plays, not four. These are:
Jidaimono plays, which are historical dramas set in a distant past, involving samurai and feudal lords.
Sewamono plays, which are domestic dramas that depict the lives of common people in the Edo period.
Shosagoto plays, which incorporate dance and are often part of both historical and domestic plays.
Each category offers a different aspect of Japanese culture and tradition, shaping the rich tapestry of Kabuki theater.