She is found at the NCR Embassy on the New Vegas Strip. She can be found either in a bunk or walking around the embassy. She is unfriendly and cold towards the Courier when she first sees them and speaks in a rude manner, but they can ask her about Jake Erwin, the Strip or herself. Her responses are curt. She is also the only NCR officer that carries a gun on the Strip. Private Jake Erwin refers her as a "hard-ass" but also harbors respect for her, saying she is the best captain he has had.
How Little We Know: The player character can report a murder at the Gomorrah casino, and show her Clanden's snuff tapes as evidence of the crime. However, there's no way to pursue this line of investigation any further, as the player character is unable to identify Clanden as the man on the tapes.
Her lips appear to be upside down. The cleft that normally faces the bottom of the nose is absent from the normal place, and can instead be seen at the bottom of her lower lip.
When spoken to after entering the Lucky 38, she will mention that it doesn't make the Courier special (at least in her eyes) and threatens them not to mess with her or any of her troopers regardless of their reputation with the NCR. She will also say this if the player character has chosen to kill Benny.
Additionally, her greeting quotes will be more aggressive if the player character's reputation with the NCR is at Shunned or Hated.
If one has failed Don't Tread on the Bear!, she'll be one of many other NPCs to attack if the player character enters the embassy.
Despite being a military police officer, Pappas does not wear the NCR MP armor.