2. Smoke
Always beloved amongst the MK faithful, Smoke was finally given the proper character treatment in MK 9 after being both a skin-swap and cyborg in past instalments. 2011's instalment made him an ultra-slick MGS 2 Raiden-lookalike who delighted in frying opponents with white-hot jets of his namesake. Mastering his abilities made you a mist-tinged blur on the battlefield, and sure some players went way too spam-happy with his various 'cheaper' tactics like combining teleporting, air-throwing and going invisible to win - but that's precisely why a return would work; NetherRealm just need to balance him better.