What is old lady from ratatouille?

The old lady from Ratatouille is named Marcella. She is a character in the movie who is the former head chef of the restaurant Gusteau's. She is portrayed as a tough and strict boss who initially hires Linguini as a garbage boy but later discovers his talent as a cook. Marcella is skeptical of Linguini's abilities until she tastes his ratatouille dish, which impresses her and convinces her to allow Linguini and Remy (the rat) to continue working in the kitchen. Throughout the movie, Marcella becomes a mentor to Linguini and helps him navigate the cutthroat world of cooking, encouraging him to follow his instincts and trust his own skills.