Continuity mistake: When Jerome get stabbed in the neck, in the first shot the blood comes from his mouth and goes towards his eye. In the next shot, there's no blood trail going to the eyes, but instead to his cheeks. (00:34:50)
Tag Team Trial: Part 1 - S1-E10
Continuity mistake: In the opening scene, Crowler is frustratedly walking through the corridors of the academy and walks past several Slifer Red students. In an overview angle, there are 5 students, with two of them standing by a door to the left of Crowler. In the next shot, Crowler is shown walking past the door, but there is no sign of the two students. (00:00:10)
Continuity mistake: When Claudette, Danni, Julien and Wagenbach are at the overturned churro cart crime scene, Claudette is seen pulling a pair of white gloves from her pocket. The gloves then disappear from her hands in a wide shot of her talking to Julien about the crime scene, but reappear in the next shot. (00:16:45)
Visible crew/equipment: When Brody and Carrie exit the bar and open the car door, a big lighting equipment screen is reflected on the door.
Continuity mistake: 4.03 - The 15 Minutes Job. Parker gives the target her number on the napkin, tells the guy to call her and takes a drink. The way she holds the glass changes immediately.
Continuity mistake: At the end when they are confronting Harmony, they pick up the water glass for DNA testing. In the next shot over her shoulder, the glass is still on the table. (00:36:55 - 00:38:09)
Visible crew/equipment: While alien reports to home planet, the shadow of the boom mic passes overhead. (00:12:20)
Spy in the House of Love - S1-E9
Continuity mistake: When DeWitt talks to Dominic about some of the recent events regarding the Actives, DeWitt's left hand moves from hanging by her side to resting on her hip between shots. (00:03:35)
Bloody Mary - S1-E5
Continuity mistake: When Sam and Dean enter the Shoemaker home, a woman leaning against a wall holding a coffee cup starts to follow them down the hall. When the shot changes, the woman is back against the wall, talking to someone who wasn't there in the previous shot. (00:08:00)
Abra Cadaver - S3-E4
Visible crew/equipment: At the beginning of the episode, when the brothers chat around the central morgue table, the boom mike appears above the table, on the upper side of the screen. (00:04:55)