Nervous Subject is a playable Sim. He can be found in the Beaker household, where he lives since his adoption by Loki and Circe Beaker. Although some people believe that Nervous was adopted after he was taken away by the social worker, his family tree states that Nervous is still the son of Olive Specter and doesn't recognize the Beakers as family.
Nervous twitches and blinks frequently. At one point during his early childhood, Nervous was taken away from Olive by the Social Worker because she neglected him and was later adopted by Loki and Circe Beaker, Strangetown's "mad scientist" couple; however they have no relation to him on his family tree. It should be noted that while it is assumed that the Grim Reaper is his father, it is not shown through his family tree, which simply shows Olive Specter as his mother. However, the Grim Reaper is the only person Olive Specter has a memory of WooHoo with. Nervous lacks any of his mother's genetics and on closer examination it is clear he is simply a clone of the Grim Reaper.
Nervous has a ten Active and no other personality points, though his genetic personality is more balanced. When Nervous's gender preference is displayed using testingcheatsenabled, or checked in SimPE, it can be seen that he has a very slight distaste for women, though, as with all Sims, the player can change this during gameplay by having him perform romantic interactions on female characters.
He does not appear to be very popular. His only friend is Pascal Curious, although his lifetime relationship with him is only moderate. He also has a reasonably good relationship with Circe Beaker, but doesn't like Loki a lot. Nervous may sometimes wander onto the Curious lot when Pascal is about to give birth.
There is another Nervous hidden in Olive's memories. This is the Nervous that Olive remembers giving birth to.
Nervous is no longer around in The Sims 2 (PSP), except as a restless ghost in Bella's mansion. The Beakers now have a garbage man that they kidnapped for their experiments. It is indicated that he once had a girlfriend named Annie Howell: the player soon discovers that she is unaware of his death, and has assumed that he left her.