Starring: Nathan Fillion, Richard T. Jones, Alyssa Diaz, Titus Makin Jr.
Warriors and Guardians - S2-E4
Other mistake: The driver in the blue Mustang (Osito) drives past Nolan and Harper, then makes a u-turn and drives past them again, to Nolan and Harper's left (same direction he came from), but when Nolan and Harper go to chase him, they turn right instead of left. (00:31:15)
Revelations - S3-E6
Continuity mistake: When Tim puts Lucy in the squad car after "arresting" her, the rear door on the driver side is open, but when the camera pans back to her it's suddenly closed without making a sound.
Trivia: Alan Tudyk asks the resident cop if there were any aliens at the hotel. In Resident Alien, Alan Tudyk played a real alien. (00:04:10)
Answer: Window tool.