Four Philosophy Ensemble / Literature
- In Akata Witch, Orlu (the Cynic), Sasha (the Apathetic), and Sunny and Chichi switch between the Optimist and the Realist.
- Catherine, in terms of Vincent and his three bros: Orlando (the Cynic), Toby (the Optimist), Jonny (the Realist), and Vincent himself (the Conflicted, unsurprisingly).
- Circle of Magic: Tris (Cynic), Briar (Realist), Sandry (Optimist), and Daja (Apathetic).
- From the Dragonlance novels: Flint (the Cynic), Raistlin (the Realist), Sturm (the Optimist), and Tanis (the Conflicted).
- The Hogwarts houses (and a generalization of their students) in the Harry Potter series:
- The Cynic: Slytherin
- The Optimist: Gryffindor
- The Apathetic: Ravenclaw
- The Realist: Hufflepuff
- Last Scenario: Hilbert (The Idealist), Matilda (the Cynic), Thorve (the Realist), and Lorenza (the Conflicted). The other three party members are all Apathetic for some reason or another; Randolph is the "just along for the ride" variety, Ethan mostly keeps his thoughts to himself, and Zawu (and later Ethan as well) has a different set of goals and priorities.
- Lonely Werewolf Girl: Kalix (the Cynic), Moonglow (the Realist), Vex (the Optimist), and Daniel (the Apathetic).
- Dominil (the Cynic), Thrix (the Realist), Beauty and Delicious (co-Optimists), and Malveria (the Apathetic).
- In Íverenskommelser by Simona Ahrnstedt, with "De skandalösa" providing each 2nd character:
- Cynics: Seth — a Knight in Sour Armor with questionable morality
and Magdalena — a Broken Bird Stepford Snarker
- Realists: Johan — a Nice Guy who will often take the middle ground
and Ossian — a Dork Knight, who will often take the middle ground
- Optimists: Beatrice — self-sacrificing, stubborn, impulsive and plucky
and Gabriel — Self-sacrificing, stubborn and impulsive
- Conflicted: Sofia — a lovely-but-weak Extreme Doormat
and Venus — another doormat like the preceding
- The Three Musketeers: Athos (the Cynic), Aramis (the Realist), D'Artagnan (the Optimist), and Porthos (the Apathetic).
- Trainspotting: Villain Protagonist and resident Only Sane Man Renton (the Cynic), born exploiter and Manipulative Bastard Sick Boy (the Realist), dim-witted and Kind Hearted Cat Lover Spud (the Optimist), violent psychopath Begbie (the Apathetic), and clean-cut Smug Straight Edge Tommy, who relies on others for validation (the Conflicted).
- The five dragonets in the Wings of Fire series fill out all five philosophies: The Hero Tsunami (the Realist), The Lancer Glory (the Cynic), The Chick Sunny (the Optimist), The Smart Guy Starflight (the Apathetic), and The Big Guy Clay (the Conflicted).