On the Island
Rosie came to Phil and Jerry to bring them some brownies and was dancing with Jerry when Phil burst into their station complaining that Jerry should be watching the monitors. While the two men bickered, Rosie noticed Horace walking around the sonar fence with some dynamite. ("LaFleur")
She was seen in the cafeteria during breakfast when Jack, Kate, and Hurley were discussing Sayid. She was later present at "the vote" with Casey to determine if Sayid should be executed. Rosie voted in favor of the execution. That night a burning DHARMA van crashed into building 15, one of the houses at the Barracks. ("He's Our You") Rosie was standing with other DHARMA Initiative members at the house after it had been put out. ("Whatever Happened, Happened")
Rosie left the island with Casey.
Rosie is a DHARMA nurse.
- Rosie wore a Geronimo Jackson shirt in "LaFleur".
- The DHARMA jumpsuit that she was wearing at the meeting identifies her as a nurse who works at the Looking Glass. ("He's Our You")
- The ABC press release for "Namaste" credits her as appearing, but she does not appear in the episode. Her scene in the episode was cut out, it can be seen featured on the Lost: On Location segment on the Season 5 DVD set. Instead, Rosie appears uncredited in the next episode, "He's Our You".