The consummate lawman, Aggo is upstanding and righteous, but he is also hot tempered and quick to anger. Despite a slight weakness for alcohol, the merest drop of which will put him to sleep, Aggo is almost always cast as an authority figure. He is most often seen as a Sherrif in the Old West, but on occasion he will take on roles such as a school principle or a doctor.
Nakamura's calming influence usually works in counter-point to his much more hot-headed usual partner, Tawashi. However, despite being generally warm-hearted, and slow to anger, Nakamura will stand on his principles when pressed by the situation. As such, he is nearly universally cast in the role of a police officer.
Murai is another one Osamu Tezuka's go-to Stars for playing the long arm of the law. Unlike his more buttoned-down colleagues, such as the stoic Inspector Geta and the hot-headed Inspector Tawashi, Murai is more of a loose cannon. In many ways he's a poster-child for the stereotypical grim and gritty cops of the 1970s - in the hard-drinking-wife-left-him-down-on-his-luck mold.
Another of Tezuka's "long arm of the law" Stars, he is similar to Inspector Geta in that both almost always appear as police investigators, and both are known for their dedication to their job. However, while Geta is known for his honesty and uprightness, Tawashi is mostly known for his suspicion of people.
Possibly the most type-cast of all of Tezuka's Stars, Hanao Geta almost exclusively appears as a police inspector/detective. In fact, in Tezuka's manga, Inspector Geta more or less IS the long arm of the law, with the role only occaisionally going to Tawashi or Murai. On those rare occasions when he is not playing a police officer, he is usually cast in some equally morally sound role - as a conscientious ship's captain, school teacher or newspaper reporter, etc.
Types of Tezuka Manga
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.