Carlotta was a holographic character in Kathryn Janeway's holoprogram of Leonardo da Vinci's workshop.

She was from Florence and posed as a model for the maestro and his disciples.

When The Doctor had to hide in the holoprogram in order to avoid detection by the Srivani, he posed as a painter and attempted to draw Carlotta. (VOY: "Scientific Method")

Carlotta was played by background actress Nathalie Huot who received no credit for her appearance.
She filmed her scenes on Tuesday 29 July 1997 on Paramount Stage 16.