U-Boat Captain

Pike (sings): "Whistle while you work, Hitler is a twerp - He's half barmy, so's his army, Whistle while you work."

U-Boat Captain (pointing at Pike): "Your name will also go on zee list. What is it?"

Mainwaring: "Don't tell him, Pike!"

U-Boat Captain: "Pike."

The U-Boat Captain was an antagonist in the comedy series Dad's Army, which told the story of a group of British Home Guard as they defended Britain during World War II - he was one of the very few Nazi characters to be shown in the entire series and also one of relatively few actual antagonists the group faced.

Appearing solely in the episode "The Deadly Attachment" the U-Boat Captain appeared when the platoon was ordered to pick up the stranded crew, however due to a combination of the show's humor as well as HQ's armed escort being late the tables turn on Mainwaring and his men, who become captives of the U-Boat crew instead.

Although not really having much authority considering he and his crew were stranded the U-Boat Captain decided to play mind-games with the platoon and devised a "list" which he would add the names of people who angered him.

To further add to the already awkward nature of the situation the U-Boat Captain's main hostage was none other than A.R.P Warden Hodges - who had an infamous hatred of Mainwaring and his crew.