Think geeky can't be sexy? Think again. These cosplayers prove that paying tribute to your favorite fantasy and sci-fi characters can be fun and flirty. 

Some of the cosplayers featured on this list will be appearing at this year's Fan Expo.

Held annually in Toronto, Canada, Fan Expo is the third-largest convention in North America. This year's Fan Expo will run from September 3-6 and feature celebrity guests including Kate Mulgrew, Gillian Anderson and a Walking Dead cast panel. 

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1. Jessica Nigri

Jessica is ready for battle in this epic blood elf costume. 

Instagram |  @jessicanigri

2. Crystal Graziano

Her Cammy from Street Fighter is spot on. 

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3. Riddle

Riddle is heavenly in this outfit from the game League of Angels

Celebrity cosplayer Riddle has paid tribute to classic anime and pop culture with her cosplay. What will she wear to this year's Fan Expo? There's only one way to find out - by meeting her at the convention. 

4. Dayna Baby Lou

Poison Ivy never looked so tempting.

Facebook |  Dayna Baby Lou