Who owns Luigi character?

Who owns Luigi character?
2. In the Mario series, he is usually not the main character. However, he has his own games where is the main character, like Luigi’s Mansion and Mario is Missing!.

Luigi

First game
Mario Bros. (1983)

Created by
Shigeru Miyamoto

2. In the Mario series, he is usually not the main character. However, he has his own games where is the main character, like Luigi’s Mansion and Mario is Missing!.

Luigi
First game Mario Bros. (1983)
Created by Shigeru Miyamoto