The Dimidas are a hostile alien special that appeared in The Inspector.
Biology:
The Dimidas are a golden blob that can turn into any shape they need. Anything that comes into contact with its body gets turned into gold. Indirect contact such as touching something recently turned into gold will cause that person to turn to gold, slowly but painfully. The Dimidas are weak to water which can be used to restore its victims to life but after a certain period of time, the victims can't be turned back to normal.
The Dimidas can become more powerful, either by consuming natural gold or things that were turned into gold by its power. Alternatively, the Dimdias can turn a person or thing to gold but melt the gold statue, killing them in the process.
History
The Dimidas first featured in The Inspector story The Dimidas where it allied itself with a human in the far future, planning to double cross him. It started to take gold from Fort Knox which attracted the attention of ASA. Keen to prevent more gold from being stolen, General Brown posted a group of soldiers in with the gold but this failed, resulting in the soldiers being turned to gold.
Soon after, The Inspector and Ofelia arrived and General Brown knowing The Inspector from the past asked for her assistance which she gave. Unbeknownst to them, Ofelia Cruz had touched a tree that had been turned to gold, causing her hand to slowly turn to gold. This attracted the attention of the Dimidas which launched an attack which resulted in ASA headquarters being turned into gold and consumed by the Dimidas. The Inspector prevented Ofelia but being hit by the Dimidas and was turned to gold, but not before giving a clue as to how to defeat the Dimidas.
Realizing that the Inspector was a Time Lady, the Dimidas double crossed its human ally and turned him to gold before melting the statue, killing him. As the Dimidas made plans to spread its gold power, ASA launched an attack, managing to stop it and free the Inspector.
Notable victims:
Ofelia Cruz (partial)
The Inspector
General Brown
Behind the scenes:
The Dimidas is based on the story of King Midas, who gained the power to turn whatever he touched to gold. This is referenced in story by The Inspector mentioning the story.