|An Inspector Calls|
|Series 16, Episode 12|
|Air Date||October 3rd, 2009 (UK)|
|Previous||Splasher's Two Stops|
|Next||Scratch's Hidden Treasures|
An Inspector Calls is the series finale of the sixteenth season and Project: Build It.
Mr. Carruthers, the chief building inspector, comes to inspect Bob's team's work.
- Mr. Bernard Bentley
- Mr. Carruthers
- Spud (flashback)
- Travis (flashback; does not speak)
- Benny (flashback; does not speak)
- Robert (flashback; does not speak)
- Dorothy (flashback; does not speak)
- Angelo Sabatini (flashback; does not speak)
- Stock footage from Sir Muck, Muck's Convoy, Dizzy the Detective, Roley Brings the House Down, Two Scoops and Bob's Big Idea is used.
- This is the last episode to use Stop Motion Animation and also the latest appearance of Sunflower Valley.
- This episode was the final time Wendy wears the red screwdriver she wore between Seasons 2-16.
- This is the last episode where Alan Marriott and Lachele Carl voices Scoop, Scrambler and Muck in the US dub, David Menkin, Sophie Aldred and Rupert Degas took over their respective roles.