A raspy voice can be the result of many things. Smokers who have been smoking for years are likely to be portrayed or often do have "raspy voice". It has a harsh, scratchy tone to the speaking and...
Yell alot, smoke, smoke, and smoke some more. Cough and clear your throat constantly, but when you have accomplished the rasp in your voice, it won't be so sexy when you are known for your loud...