- Heck! I forgot Niki! Hey there, you little goblin!
- — Pen Miller src
For almost ten years, Pen Miller wrote and drew comics based on his own crime-solving adventures, which were published in National Comics. Pen Miller gained his reputation by putting the likes of "Nokky" Ryan and "Gouge" Cahill behind bars.
- Smokes a pipe.
- Pen Miller by Klaus Nordling appears in National Comics #1 through issue #22, then in Crack Comics #23 through issue #60.
- Some time between National Comics #21 and National Comics #22, without explanation, Niki the valet changes names, and becomes Chop Chu the houseboy. His appearance and comical speech pattern remain the same.
- 60 Appearances of Pen Miller (Quality Universe)
- 2 Images featuring Pen Miller (Quality Universe)
- 1 Quotations by or about Pen Miller (Quality Universe)
- Character Gallery: Pen Miller (Quality Universe)
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