|Release date||24 October 2016 (Update)|
|Race||Brain of a human in a mechanical suit|
|Source||2016 Hallowe'en event|
|Examine||Dr Fenkenbrain on a mechanical spider, because the world needed more nightmares.|
Dr Spider MD is a companion pet unlocked as a reward from the 2016 Hallowe'en event, requiring 500 grey matter and finding 8 mechanical spider legs. It is Dr Fenkenbrain in a mechanical spider-like device.
Having Dr Spider appear in your player-owned house changes his name to Dr (House) Spider MD.
- His dialogue references Spider-Man, Pinky and the Brain and the song Wild Wild West by Will Smith.
- Dr (House) Spider MD references him now being a house spider as well as the TV series House.
- Dr Spider MD's appearance might be a reference to Porky Minch from the Mother series.