So "Venusians" are these Star Trek-y humanoid aliens that evolved on a planet with more than 75 times Earth's atmosphere. In a lot of ways this makes them not too dissimilar from deep sea creatures. Their bodies combat the extreme external pressure of the atmosphere with ludicrously high internal pressure to keep them from imploding. So how come they don't just... y'know... blow up in our own atmosphere? Sure, they could wear suits but where's the fun in that?
The whole point of having aliens adapted to extreme pressure is to have them inflate in a comical way in our atmosphere of course! Who wouldn't want to laugh in the face of an alien who looks and sounds like a blobfish on helium? Anyway...
Venusians, believe it or not, look just like human actors that wear lots of make-up and latex prosthetics to cover their noses and other defining facial features like hair or ears. While they look normal in their native atmosphere their bodies become extremely bloated in ours, their skin flushes with pink blood and their voices sound as if a rubber duck met an air hose. All these things are set in stone. Any other anatomical features that would allow them to transition from a dense oxygen rich atmosphere to another is still up in the air (pun not intended).
Pressure: 93 bar (1,350 psi)
Recommended activities: hiking and slow skydiving