Skarosa
Dr Skarosa was supposedly the founder of 3W.
Ostensibly he played white noise through a translation matrix and heard three words – "Don't cremate me". Convinced that these were the voices of the recently deceased, he set up 3W on behalf of the dead as a way for them to communicate with the outside world. The Twelfth Doctor called him an idiot. Skarosa died and Missy became the leader of the organisation. His body was kept in a dark water cell in the office of Dr Chang.
When Missy commanded "bring out your dead", Skarosa stood in his cell. The dark water drained away to reveal that Skarosa's corpse had been upgraded into a Cyberman. Upon his release from his cell, he encountered Clara Oswald. Playing for time, Clara insisted that she was the Doctor and that Clara Oswald had never existed. Skarosa regrouped with other Cybermen to confirm Clara's identity. However, one of the other Cybermen was an emotionally intact Danny Pink. Danny stunned Clara and destroyed the other Cybermen, including Skarosa. It was later revealed that Skarosa did not found 3W, it and its back story were merely a front created by Missy. (TV: Dark Water / Death in Heaven)