Dinghy Dog is LeChuck's right hand man, and the mascot for the Big Whoop amusement park. Dinghy wore a dog costume, and a blue hat with the word 'Dinghy'. It is uncertain whether the man within the suit was an undead skeleton, as two small eyes could be seen from the mouth of the suit. He had somewhat of a silly demeanor, though he didn't mind biting back if pressed. He had a very cartoony laugh, and would often remark 'Yup!' while speaking.
He was one of LeChuck's closest henchmen, and served him during his resurrection as a demon pirate in Curse of Monkey Island. He was seen in a cutscene announcing that he and his men had found Guybrush and Elaine somewhere on Blood Island.
Later, Dinghy would be seen running a game which had him guessing the customer's weight or age. He also served as the doorman to the Big Whoop Rollercoaster, and prohibited children from entering the ride, citing that it was for 'older kids'.
When Guybrush challenges Dinghy to guess his weight, Dinghy guesses correctly. He deduced this by figuring out his height and age, which is then verified after Guybrush steps on a weighing scale. However, Dinghy fails to guess Guybrush's age correctly, after being shown a Scumm Actor's Guild membership card. The card states that Guybrush is in fact, twenty years old.
Guybrush is able to hit Dinghy Dog, perhaps in reference to kids beating up theme park mascots. If Guybrush hits him a sufficient number of times, Dinghy would retaliate and bite him on the head. This allows Guybrush to grab a bit of the Dinghy's suit's hair, which he would then used to create a tonic that would cure his predimacent.
- He was considered the park's most popular character, much to Wharf Rat's discontentment.
- Dinghy Dog is meant to be a parody of Disney's theme park mascots.
- Dinghy is never seen or mentioned after The Curse of Monkey Island. It is possible he left after the Carnival was destroyed.