Nothing is known about Breannah's life before the outbreak besides that she was a sailing instructor, and is probably experienced in seafaring.
Breannah accompanies Connor, along with Ben, as they board Strand's yacht and serves as his bodyguard. After Travis and Alicia are taken captive by Connor, Ben and Breannah stay behind with Reed to watch over the remaining captives. Meanwhile, Luis Flores and Nick are on a raft traveling back to The Abigail. Alarmed at the presence of armed hostiles on the boat, Luis quickly guns down Ben and Breannah, allowing Madison to gain the advantage over Reed.
While aboard the Abigail, Breannah is gunned down by Luis with a rifle.
- This character is credited as Red in "Blood in the Streets" and the Talking Dead dedicated to this episode.
- Breannah's name, age, and occupation was revealed in the Story Sync for "Blood in the Streets".