- Designs varied greatly across time, most were incased in a Silver Cyber-suit
- Cyber-helmet has handles which connected on top
- Emotional inhibitors which suppressed all feelings
- Retained some organic components, typically the brain
- Believed the best way to survive is to remove weakness, to them, emotions were flaws
- Mondasians' planet started moving away from the sun; slowly killing them
- They replaced their limbs, organs, & vital systems with artificial components
- Calling themselves Cybermen, they set out to do the same to all living beings
- Some Cybermen originated from a parallel universe
