monodrama
/ˌmɒnoʊˈdrɑːmə/ (MON-oh-DRAM-ə)
Definitions
1. noun
A play or performance in which a single actor plays all the parts.
“The theater company is producing a monodrama about a solitary sailor at sea.”
2. adjective
Relating to or involving a single actor playing all the parts.
“The film is a monodramatic retelling of the classic novel.”