To understand the genius of the , you have to understand the casting. Lee Seung-gi is known in Korea as the "Nation's Little Brother." He is a former variety show host, a pop singer, and the star of lighthearted romantic comedies like My Girlfriend is a Gumiho .
The success of Mouse hinged entirely on its lead actor, Park Hoon. The transition from the lovable Ba-reum to the cold, calculating predator required a performance of immense range.
