Doug Takes a Hike / Doug Rocks - S1-E4
Continuity mistake: When Roger is dancing in Skeeter's yard, he changes color.
Doug to the Rescue / Doug's Cool Shoes - S1-E7
Continuity mistake: Doug's Cool Shoes: When Doug is buying shoes, the saleslady takes off Doug's sneaker and when it shows the shoebox, his other shoe is already in there.
Doug to the Rescue / Doug's Cool Shoes - S1-E7
Continuity mistake: Patty's notebook disappears and reappears when she is being bothered by Roger in detention.
Doug Gets His Ears Lowered / Doug On The Wild Side - S1-E8
Continuity mistake: Doug Gets His Ears Lowered: When Joe invites Doug to his new barbershop for a free haircut, the shop's front door opens inward, but in the next shot, the front door has vanished. (00:09:40)
Doug is Quailman / Doug Out in Left Field - S1-E12
Continuity mistake: Doug is Quailman: When Doug tells Porkchop to sign his name on the comic book, his pencil is tucked in his ear. When Porkchop prints the page and they both shake hands, the pencil is gone. (00:02:00)
Doug is Quailman / Doug Out in Left Field - S1-E12
Continuity mistake: The baseball players on Patty's team appear out of nowhere near the beginning. She walks back to the bench in defeat and it's just Doug and Skeeter. A couple of seconds later there are a lot of people in the stands.
Doug's Derby Dilemma / Doug's On His Own - S2-E6
Continuity mistake: Doug's On His Own: When Doug talks to Skeeter on the phone, as he says, "Well, at least our phones are working," the 0 button on his phone is missing. In the next shot of the phone, the button is back. (00:18:13)
Doug's Fat Cat / Doug and Patti P.I. - S3-E1
Continuity mistake: Doug's Fat Cat: When Doug is filling up Stinky's food bowl, the name on the bowl is misspelled as "Stiniky." When he places the bowl on the floor, the name is spelled correctly. (00:05:37)
Doug's Fat Cat / Doug and Patti P.I. - S3-E1
Continuity mistake: Doug and Patti P.I.: When Doug and Patti tackle Skeeter, they pin him down, and Patti's hands are on the left side of his chest, and Doug's hands are on the right. In the close-up of Skeeter, their hands have switched sides; then go back to normal in the next shot. (00:20:03)
Doug's Servitude / Doug Rocks the House - S3-E2
Continuity mistake: Doug Rocks the House: When Roger and his friends are throwing rocks at the house, there is a purple book in front of Roger, and two other books next to his friends. In the next shot, the purple book moves to the side of Roger, and it changes to yellow. A few shots later, it changes to orange. Then when Doug throws a rock at the house, the other two books change position, then disappear a few shots later. (00:11:58 - 00:14:11)
Doug's Servitude / Doug Rocks the House - S3-E2
Continuity mistake: Doug Rocks the House: When Doug tries to talk to Patti at her locker, he gives the rock and marker back to the kid beside him, then turns to look at Patti. When the shot changes, his eyes are suddenly closed. (00:18:01)
Doug's Servitude / Doug Rocks the House - S3-E2
Continuity mistake: Doug is building a house out of playing cards at the end. He has a deck next to him he's using. When porkchop destroys the house, the deck of cards disappears.
Doug's Career Anxiety / Doug's Big Brawl - S3-E4
Continuity mistake: Doug's Career Anxiety: When the kids are sitting around the table deciding what project they will make, there are eight chairs around the table. When the kids leave the room later on, some of the chairs have disappeared. (00:06:52)
Doug's Career Anxiety / Doug's Big Brawl - S3-E4
Continuity mistake: Doug's Big Brawl: When Doug starts talking to Larry on the phone, the camera zooms in on him. Skeeter is visible at the right side of the screen, then he disappears mid-shot. (00:16:32)
Doug and the Weird Kids / Doug's Behind The Wheel - S3-E6
Continuity mistake: Doug's Behind the Wheel: When Judy parallel parks the car, and Doug tells her that she just parallel parked, both of their seatbelts are on. When Judy comes out of the car, their seatbelts are suddenly off. (00:21:56)
Doug's Cartoon / Doug's Monster Movie - S3-E8
Continuity mistake: There is a person holding a sign next to Judy. It says "No censorship." This sign changes. The word spacing is different in the closer angle. In the wide angle there is a noticeable space between the word censor and ship.
Doug Inc. / Doug's Nightmare on Jumbo St. - S3-E10
Continuity mistake: Doug's Nightmare on Jumbo Street: When Doug has a nightmare about the Abnormal, he runs into his garage, and the doorknob is visible on the door. When he shuts the door and leans against it, the doorknob is suddenly gone. It comes back in the next shot. (00:16:06)
Doug and the Yard of Doom / Doug's Garage Band - S3-E12
Continuity mistake: Doug's Garage Band: When Doug and Skeeter are performing their song in Doug's room, the trash can being used as a drum and lid being used as a cymbal are gray. When they finish playing, they become black. The handle on the lid on the trashcan also disappears. (00:13:55)
Doug's Great Beet War / Doug's Magic Act - S3-E13
Continuity mistake: Doug's Great Beet War: In Doug's imagination, when he grabs the tower and it begins to fall apart, part of the tower disappears mid-shot. (00:05:14)
Doug's Great Beet War / Doug's Magic Act - S3-E13
Continuity mistake: Doug's Magic Act: When Doug tries to yank the handcuffs off and accidentally knocks the items out of his mirror cabinet, some of the items change colour, and some of the labels and designs on them change or disappear. A purple bottle also appears on the bottom shelf, which wasn't there in the previous shots. (00:17:35)
