More of an inspiration than a rip-off. You're borrowing ideas you like from various sources instead of just copying one thing.
In my opinion, there's no such thing as an original character, because there are no original ideas any more. You can try your hardest, but unless you make something totally bizarre, your character will almost always be similar to someone else's, whether you realize it or not.
So long as you're not just recreating the exact same character with a different name, and you actually put some effort into making it different, don't worry too much about it.
Edit: Wow, been a long time since I used the wrong your/you're. Sometimes I type faster than I think.