Riley is Flinn's roommate, and best friend. She's described as eccentric, enthusiastic about her passions, and often playfully sarcastic. A caring friend, she'd help you bandage a paper cut, but you'll have to fight to convince her not to eat week-old leftovers.

It's also important to note that Riley is a trans woman. If you can portray her personality in a way that's suiting, I'm content with both more masculine, and feminine voices. Keep in mind she's very energetic, and the best comparison in media I've found is Vanellope Von Schweetz, from Disney's Wreck-it-Ralph.