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 Halloween Adventure - S4-E12
Continuity mistake: When Doug, Skeeter, and Roger enter the haunted house and the wall starts moving towards them, they are standing to the side of the doors. In the next shot, they are standing in the center of the doors. (00:12:32)
Doug's Birthday Present / Doug's Fan Club - S4-E5
Continuity mistake: Doug's Fan Club: When Doug imagines himself doing a magic trick with Todd and Wesley, they both walk into the box for the trick. Todd's skin color immediately changes from yellow to white when Wesley walks past him. (00:18:36)
Doug's Halloween Adventure - S4-E12
Continuity mistake: When Roger and his friends tell Doug to toilet paper Mr. Bone's house, Doug throws the toilet paper on the ground. When Doug and Skeeter walk away from them, the toilet paper is nowhere to be found on the ground. (00:07:51)
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 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'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'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 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'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 Bum Rap / Doug & Patti Sittin' in a Tree - S4-E2
Continuity mistake: Doug and Patti Sittin' in a Tree: When Patti asks Doug if he would like to go see a movie, her bag is in front of her. Two shots later, it's further away from her, and it changes position. (00:12:21)
Doug's Bum Rap / Doug & Patti Sittin' in a Tree - S4-E2
Continuity mistake: Doug and Patti Sittin' in a Tree: When Patti walks up to Doug in the beginning, Doug's bag is next to his sandwich. Later on, when Patti asks him if he wants to invite someone else to the movie, the bag changes position. (00:12:21)
Doug's Bum Rap / Doug & Patti Sittin' in a Tree - S4-E2
Continuity mistake: Doug and Patti Sittin' in a Tree: In the beginning, when Doug and Patti finish talking to each other, Patti walks away and leaves her bag on the table. When the other kids start laughing at Doug, it disappears. (00:12:45)