If you mean the voice actor,his name is Charles Martinet.
I personally think that Super Mario bros 3 is way better, and I believe most people would agree with me on that. R3 Gamers www.r3gamers.com
No. You can play with Luigi in New Super Mario Bros. DS. Here's how. When you're on the file screen, hold down L+R and then, still holding down L and R, select the file you want to play in. Then you...
u always do if u want luigi hold don r1 and l1 and select a file
Use a mini mushroom (the tiny blue ones).