I really hate this one person in my course.
Why do you hate that person in your course?
He's so annoying and I don't like people with weird voices.
Hating someone just because you consider their voice to be weird isn't appropriate behavior. You should be more understanding to people who have voices that are different as the tone of their voice isn't something that they can control. It's wrong to judge people based on factors that they cannot control.
He talks a lot during class and it is actually making me less focused during the discussions.
Then I feel like you're in the right to report him if you think he is disrupting the class and your professor should know what to do moving forward. You should tell your professor and other classmates to see if they share your sentiment and so the whole class can do something about it.