Personality: Jake Marshall comes straight out of an old western movie. He uses constant old west slang, and is very much the laid back cowboy. Beneath his careless exterior, however, lies a sharp wit.

Misc Facts: In Jake's early character designs he had a cactus in his pocket. Ouch. He also had a guitar, but the character designer was asked to take it out.

Jake keeps three cacti in his office: Billy, Bogey, and Marylin.

The reason Jake was made a cowboy was to differentiate him from Godot, who he resembled in early drafts of the script (character-wise). His possible romantic history with Lana was also a way to complete the Skye Sisters = Fey Sisters comparison, by mirroring Mia's relationship with Kaminogi.

Friends and Family: Jake had a younger brother, Neil (Naoto).

Name Origin:
English: Marshall comes the names of old west lawmen (sheriff and marshal).

Japanese: The kanji making up Zaimon mean "sin" and "gate," but I'm not certain of any more specific reference, other than members of the staff claim it fits well with Gant's name.

Background:

The sexy lunch-lady and witness of PW case 5.
 

Personality: Angel Starr is one cool customer. With her beautiful looks and strong personality she has no trouble getting what she wants out of men. She likes to express what she feels for different people by giving them certain lunch specials.

Misc Facts: Angel wears colored contacts.

She has 20 lunches in the game - it's supposedly impossible to see them all with only one playthrough.

When Angel was a detective she was known as the "Cough-up Queen" for her ability to get suspects to confess. Apparently she once used this talent on Gumshoe when they were younger. (In the Japanese her nickname is "Gero Mamire").

Friends and Family: Angel has a long list of boyfriends, such as "this boyfriend" "that boyfriend" and "the other boyfriend." Position for "yet another boyfriend" has yet to be filled.

Name Origin:
English: Angel Starr is just supposed to be a very pretty, feminine name.

Japanese: Kyouka, with slightly different kanji, means "an offering of flowers before a grave." "Ichinotani" is the scene of a famous samurai battle during the sengoku era, but I'm not sure what that has to do with her.

French: Means "angelic star" (thanks Ryuko!)

Background:

Personality: Mike Meekins is a bit of a spazz but eager to please. He carries around a megaphone and uses it much too often, which usually results in people trying to purposefully dismiss him. But his heart's in the right place.

Misc Facts: He's prone to getting parts of his clothing trapped in car doors.

The character designer (Kazuya Nuri) created the image for Meekins having been told "he's pretty annoying, but also lovable." Director Takumi describes Meekins as "existing in another world from ours."

In the Japanese Meekins has an unnecessarily polite speech pattern. It was a problem for coding because he took up so many characters on screen when speaking.

The name "Harabai" is often mistaken for "Haibara" and the character himself messes it up at least once in the game (though Takumi didn't specify if that was a script typo or not).

Friends and Family: Unknown.

Name Origin:
English: Meekins probably just comes from the adjective "meek." Mike may have come from the fact that he's always using his megaphone, which is like a microphone. (-TotalSpaceshipGuy)

Japanese: "Susumu" is a fairly common male Japanese name meaning, "to press forward." His name was chosen with Goodman's at the same time because they fit together well.

French: "Ballaud" is a pun for balourd meaning "clumsy". May also come from the sentence "C'est ballot !" used when someone does something particularly foolish.

Background: Nothing in particular.

Ex-detective and victim of PW case 5.

Personality: Unknown.

Misc Facts: None.

Friends and Family: Unknown.

Name Origin:
English: "Goodman" comes from his truthful nature.

Japanese: Tadashii means "morally right" or "correct." His name was decided along with Meekins' Japanese name, and the staff often thought of the two as a pair that worked well together.

French: Lebon comes from le bon, which means, "the good," like his English and Japanese names. (Thanks TTH!)

Background:
 

Former winner of the King of Prosecutors award, and an important part of PW case 5.
Personality: Unknown.

Misc Facts: Neil Marshall won the same King of Prosecutors award that Miles Edgeworth wins later.

Friends and Family: Neil was Jake Marshall's younger brother.

Name Origin:
English: Neil was as much a cowboy as his brother, which is why they're both "marshals."

Japanese: The name Naota implies honesty.

Background:

Personality: Unknown.

Misc Facts: None.

Friends and Family: Unknown.

Name Origin:
English: "Darke" because he's a scary serial killer.

Japanese: Aokage means "pale shadow."

French: Sinister, like the adjective.

Background: