- Abusive Mother: Her Magic Mirror must have told her Frederica is the Fairest of Them All or something.
- Accomplice by Inaction: It ends up being Catherine's opinion on anyone who falls prey to Lady Susan's charm and lets her abuse her adorable daughter. Being the Only Sane Woman is stressful!
- Consummate Liar
- Evil Feels Good:
Lady Susan: I call on you, dear Alicia, for congratulations: I am my own self, gay and triumphant! ... I hope you will be satisfied with my speech. Its effect on Reginald justifies some portion of vanity, for it was no less favourable than instantaneous. Oh, how delightful it was to watch the variations of his countenance while I spoke! to see the struggle between returning tenderness and the remains of displeasure. There is something agreeable in feelings so easily worked on; not that I envy him their possession, nor would, for the world, have such myself; but they are very convenient when one wishes to influence the passions of another.
- For the Evulz:
Lady Susan: I have disconcerted [Reginald] already by my calm reserve, and it shall be my endeavour to humble the pride of these self important De Courcys still lower, to convince Mrs. Vernon that her sisterly cautions have been bestowed in vain, and to persuade Reginald that she has scandalously belied me. This project will serve at least to amuse me.
- Gold Digger: She wants to marry a super wealthy guy.
- The Hedonist
- It's All About Me
- Manipulative Bitch:
Lady Susan: I could not reconcile it to myself to force Frederica into a marriage from which her heart revolted, and instead of adopting so harsh a measure merely propose to make it her own choice, by rendering her thoroughly uncomfortable till she does accept him.
- Mrs. Robinson: She manages to seduce Reginald who is ten years younger.
- Rich Bitch
- Static Character
- The Thing That Would Not Leave: For the Vernons. She keeps extending her visit eventhough she's not welcome.
- The Vamp
- Villain Protagonist
- Villain with Good Publicity
- What Is This Thing You Call Love?:
Letter 19: She is actually falling in love with Reginald De Courcy! To disobey her mother by refusing an unexceptionable offer is not enough; her affections must also be given without her mother's approbation. ... Artlessness will never do in love matters; and that girl is born a simpleton who has it either by nature or affectation.
Letter 25: [Frederica's] idle love for Reginald, too! It is surely my duty to discourage such romantic nonsense.