Luigi

Luigi is the taller and younger brother of Mario. He never seems to go on adventures if Mario is not there. Some people consider him to be cowardly and a wimp, but he can be brave and overcome his fears. He is sometimes the deuteragonist games in the Mario. He gets generic names from enemies like "Green Stache". He is voiced by Charles Martinet, like some other Mario characters. Bowser and his minions for some reason do not seem to recognize Luigi, even though he is Mario's brother.

Mario Bros.
Luigi and Mario were plumbers who fought off turtles, flies, crabs, and other creatures. Luigi was a recolor of Mario who had no different characteristics.

Super Mario Bros.
Luigi helped Mario helped Mario fight Bowser and rescue Princess Peach.

Super Mario Bros. 2
Luigi got his first current playable appearance in this game. He also helped Mario in this game.

Super Mario Bros. 3
Luigi still looked the same, but his characteristics were like Mario's.

Super Mario World
He still is like the Luigi from Super Mario Bros. 3

Super Mario World 2: Yoshi's Island
Baby Luigi got captured by Kamek, so Baby Mario and Yoshi saved him.

Super Mario Galaxy
Luigi fled from the chaos at the celebration, but Mario saved him. However, he got tired and led Power Star collecting to Mario.

New Super Mario Bros.
Luigi is a playable character.

New Super Mario Bros. Wii
Luigi is also a playable character. He is also in the Super Guide.

Super Mario Galaxy 2
If you collect 20 Power Stars, Luigi will appear in every galaxy. If you talk to him, you can become Luigi.

Super Mario 3D Land
When you finish World 8, an image will pop up saying Luigi has been captured by Dry Bowser. When you finish the Special Level 1, you can play as Luigi.

Super Mario 3D World
Luigi is a playable character.

Luigi's Mansion
Luigi is the main character of Luigi's Mansion.

Physical Appearance
Luigi is taller and thinner than Mario. He also has the same outfit as Mario, but the color of his shirt and hat his green and has an L on his hat.