The “Neutral” Guys

Ongoing Serial: a series of episodes, published over a span of weeks/months/years where the story plot is connected from chapter to chapter and must be read in chronological order for it to be understood properly.
Chapter Serial: a series of episodes, published over a span of weeks/months/years where the story plot is self-contained to a single chapter. There may be an overarching plot, but the stories can generally be read in any order and be understood
Book: an all-in-one self contained story published as a one-off.
Supplement: an an all-in-one self contained story published as a stand-alone supplement to a regular weekly/monthly periodical.
Short Story: an all-in-one, self contained story that was published in a regular weekly/monthly periodical
Anthology: a collection of all-in-one, self contained stories that were published in a regular weekly/monthly periodical but are generally grouped together.

Dojiemon

Usually towering over his companions with his bulky frame, you can usually spot him by his large round nose and even larger round belly.

His uniquely dull character makes him perfect for middle-of-the-road roles. When he's a good guy, you don't care too much, and when he's a bad guy, you don't hate him too much. This usually means he's relegated to bit parts as servants, police officers, reporters or simply just men in the crowd.

Frankenstein

Despite his stark appearance, however, Frankenstein is no lumbering simpleton. Instead, he is another of Tezuka’s cadre of mad scientists who is a master of his trade. Often cast in leadership roles, as a scientist, a general, or a respected professor – he usually has a harsh lesson to teach.

Duke Red

Despite almost never taking a starring role, Duke Red is, without a doubt, one of Tezuka's major stars. He is well-known mainly for his classy, aristocratic style, and his larger-than-life performances steal any scene he's in.