Doug's Fat Cat / Doug and Patti P.I. - S3-E1
Revealing mistake: Doug's Fat Cat: When Doug imagines himself reporting Stinky on the phone, when Stinky is chasing Porkchop, her tail is layered over the wall in front of her. (00:02:15)
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
Revealing mistake: Doug is Quailman: When Doug, as Quailman, gives everyone's brains back and they start cheering, the computer and boy behind Skeeter are layered over him for one frame. (00:09:24)
Doug is Quailman / Doug Out in Left Field - S1-E12
Other mistake: Doug Out In Left Field: When the kids are carrying Patti at the end, there is a boy behind Doug whose blue shorts keep flashing green, and his light green hair keeps flashing dark green. In the next shot, his hair stays dark green. (00:22:21)
Doug's Cookin' / Doug Loses Dale - S1-E11
Audio problem: Doug Loses Dale: At the end of the episode, after Doug tells Porkchop, "You better watch out, or I'll bait you and reel you in," he laughs, but his mouth doesn't move. (00:22:34)
Doug's Doodle / Doug's Runaway Journal - S1-E10
Revealing mistake: Doug's Doodle: At the end of the episode, when Doug imagines himself as Smash Adams driving out of the classroom, right before he takes off, his car is layered over the desk in front of it. (00:22:36)
Doug's Big Catch / Doug Needs Money - S1-E9
Audio problem: Doug Needs Money: When Skeeter tells Doug that they have to replace Mr. Dink's grill before he finds out it's broken, as he says, "That grill was very expensive," his mouth stays closed until the word "very." (00:13:09)
Doug Can't Dig It / Doug Didn't Do It - S1-E5
Audio problem: Doug Can't Dig It: After Doug imagines Judy performing at the school, when Skeeter says, "Maybe it won't be so bad, Doug," his mouth doesn't move. (00:03:29)
Doug Can't Dig It / Doug Didn't Do It - S1-E5
Other mistake: Doug Can't Dig It: After Judy finishes her performance in Doug's imagination, when the curtains close behind her, she is layered behind them for a split-second. (00:03:19)
Doug Can't Dig It / Doug Didn't Do It - S1-E5
Other mistake: Doug Can't Dig It: When Doug imagines Judy performing at the school, as Judy says, "My soul throbs," her right sleeve turns purple twice. (00:02:52)
Doug Takes a Hike / Doug Rocks - S1-E4
Other mistake: Doug Rocks: When Doug and Skeeter win the contest to see The Beets, when Roger says, "Gee Funnie, I guess even a loser like you gets lucky once in a while," the logo on Roger's shirt is reversed. (00:17:23)
Doug and the Yard of Doom / Doug's Garage Band - S3-E12
Revealing mistake: After the "Think Big" number, Doug writes an idea down in his journal. There are a brief couple of shots where the edge of the animation cel is visible. It is a white line that disappears.
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 Takes the Case / Doug's Secret Song - S2-E1
Audio problem: Around 3 and a half minutes into the episode, Doug, as the Chameleon, says he has a good idea as to who would've taken BeeBe's radio. The end of this sentence is very unnaturally pitched up.
Doug Takes the Case / Doug's Secret Song - S2-E1
Revealing mistake: The framing of this entire episode is such that the edge of the animation cels is visible. Noted on Paramount+.
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)
Doug's Shock Therapy / Doug Is Hamburger Boy - S3-E11
Audio problem: Doug's Shock Therapy: When Doug brings Mr. Bone flowers at the hospital, as he says, "It's not exactly the same as a skateboard, but," the camera is on Mr. Bone. It cuts to Doug right before he says the word "but," but his mouth doesn't lip sync the word. (00:10:44)
