- Character Rerailment: While temporary, Huey once again gets the role of leading his brothers into trouble, and leading them back out again.
- Harsher in Hindsight: As of this episode, Duckworth is confirmed to be dead; not long after the episode aired in Scandinavia, Chuck McCann, who voiced Duckworth (and Burger and Bouncer Beagle) in the 1987 series, passed away. The Character Died with Him is taken to its logical extreme.
- Hilarious in Hindsight: Louie thinks Scrooge hates his birthday because "he's the oldest person he knows". The Secrets of Castle McDuck! proves Louie wrong when it reveals Scrooge's parents are still alive.
- Unexpected Character: Took many fans by surprise when Duckworth was confirmed deceased before the events of this show. Word of God said he was in the show's opening sequence, they were right, we just didn't know it because Duckworth was the skull ghost.
YMMV / DuckTales (2017) S1 E11 "McMystery at McDuck McManor!"