|This needs a stretch.|
A Fright at the Opera is the first part of the twelfth episode of the first season of The Richie Rich/Scooby-Doo Show.
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- Phantom of the Sewers (single appearance)
|Don Messick|| Scooby-Doo|
|Casey Kasem||Shaggy Rogers|
Animation mistakes and/or technical glitches
- When Shaggy and Scooby go through the doors, and the former says "I hope this is the one", his lips aren't moving.
Inconsistencies/continuity errors and/or goofs/oddities
- None known.