[STM]

I thought it's science fantasy, I mean it's basically a planet far far away, inhabited by aliens.

In regards to the topic, there's no reason why women can't voice characters, or why there can't be female expressing characters. If you look at many super queen species, the workers are all female and vastly outnumber the few male drones. To be honest, you wouldn't even have to make a female character model because for all we know they look relatively the same; perhaps just give them a female voice and minor adjustments such as a higher BFP and a lower height. Then again it's Oddworld so who knows.

The one species I think there's no point having female characters is the glukkons. I think it works well having it like a 'boys club' when really it's a bunch of doting sons actually controlled by an angry maternal figure.