Character Personality Generator

Also, take a look at these:

Character Speech Feature Generator
Character Quirk Generator
Character Flaws and Weaknesses Generator
Character Motivation Generator
Basic Character Appearance Generator
Character Development Question Generator
Backstory Idea Generator
Fashion Style Preference Generator

And you might also be interested in:
Printable Character Sheets
Basic Tips To Make Better & More Appealing Roleplaying Characters
How To Make A Playable RP Character Fast
Simple Tips To Put Yourself In The Shoes Of Characters Who Aren't You
Simple Ways To Fill Out & Humanize Your Character
Character Development Questions
Character Creation & Development Theory (Or, How To Make Characters 101!)

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