Mondasian

Mondasians were, according to the Eighth Doctor, one of only two species — along with humans — on which the cyber-conversion process worked. Indeed, the Doctor further described them as humanity's "closest cousins". (DWM: The Flood) Also called Mondans (EDA: Iceberg), Mondasians were natives of the planet Mondas who eventually created the technology that gave rise to the subspecies known as Cybermen.

Culture
Mondas was ruled by the Committee, a gestalt of twenty individuals. In relation to their occupations, individual Mondasians held a title before their first names. These included "Doctorman" for scientist, "Sisterman" for nun or "Electroman" for electrician.

As with the humans of Earth, Mondasians celebrated Christmas although they dressed their trees for symbolic reasons. The tinsel represented their journey through space, the baubles representing planets, and the star at the top representing their home system, Sol. (BFA: Spare Parts)

Technology
For a reason the Doctor was unclear of (DW: Attack of the Cybermen), Mondas was equipped with a propulsion system that could drive the planet out of its orbit.

Aging people often had cybernetic enhancements, comparable to pacemakers. They also made use of cybermats for security and for detecting energy.

Their cities were domed, the surface of their world considered inhospitable. However, fully converted CyberMondasians had sufficient life-support to perform work on the surface. (BFA: Spare Parts)

History
One account claims that the Constructors of Destiny created the Mondasians in an experiment, as a deliberate parallel to humans, to act as a control in a experiment. (PDA: The Quantum Archangel) Another identifies Mondas as Marinus, and the Mondasians as the descendants of the Marinusians after the Voord used a world-shaper for cyber-conversion. (DWM: The World Shapers)

The Mondasians' society was comparable to 1950s Great Britain before the entire population was fully converted. (BFA: Spare Parts)


 * See Creation of the Cybermen