I'm your new friend Teddy. Spoiler alert! I'm not your friend.
Teddy to Leo

"Night of the Living Virus" is the 17th episode in Season 1 of Lab Rats. It first aired on October 15, 2012. It features the first and only appearance of Teddy and the last appearance of Stephanie.


Leo desperately wants to be Davenport's lab assistant, but he accidentally corrupts the smart-home system, turning Eddy into an evil demonic virus named Teddy. Meanwhile, Bree holds a sleepover with her friends, unaware that they only wanted to come because of the house she lives in, while Adam and Chase try to pull pranks on the girls.


Main Cast

Recurring Cast


  • The episode aired on Billy Unger's 17th birthday and this is also the 17th episode of the series.
  • This is the first Halloween special of Lab Rats. The second being The Haunting of Mission Creek High, the third being Spike Fright, and the fourth being The Curse of the Screaming Skull.
  • Leo's shirt is a reference of the video game Star Fox.
  • This is the first and only appearance of Teddy.
  • This is the last appearance of Stephanie.
  • In Lab Rats marathons, this episode airs between Commando App and Leo's Jam so it was probably meant to originally air around that time.


  • Chase's hair is long again even though Billy Unger cut it (as seen in Air Leo). By the time Air Leo aired, this episode wasn't yet broadcast. But the production code says that the episode should've aired before episodes where Chase's hair gets long.
  • Chase could have and should have used his force field to protect himself from the lasers while Adam uses his heat vision from behind Chase.
  • It was said that Stephanie only went to Bree's sleepover because of the Davenport's house. However, when she first arrived, it was seen that she was checking out the house for the first time.
    • Although this could be just because she heard about the house before 
  • When Tasha goes to tell her scary story she walks down the stairs and behind the couch to sit down when she does tell the story the camera is in front of the whole couch yet she looks surprised when Adam and Chase jump up from behind the couch after Bree says they were the ones opening door.

Cultural References


Leo: Well, I keep telling you I'd love to work with you in the lab.

Donald: Yeah, and I keep telling you I don't want to die in a fiery explosion.

— Leo and Donald
What did you DO? I feel sick. Ones and zeros are flying out of both ends!
— Eddy to Leo
Leo, buddy, next time, try not to mention our secret plan IN FRONT OF THE GIANT FLAMING SKULL!
— Donald to Leo
In a horror movie, the first person to leave the room always gets killed. After you, Adam.
— Chase


Lab Rats 'Gallery'
The image gallery for Night of the Living Virus may be viewed here.


For a full transcript of Night of the Living Virus, click here.


"Lab Rats" promo "Night of the Living Virus"

"Lab Rats" promo "Night of the Living Virus"

Clip - Night of the Living Virus - Lab Rats - Disney XD Official

Clip - Night of the Living Virus - Lab Rats - Disney XD Official



Living virus My favorite episode is Night of the Living Virus!
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