Who is the actress in the T-Mobile commercial who asks 'What is in a hot dog'?

The actress in the T-Mobile commercial who asks "What is in a hot dog?" is Anna Kendrick. She is known for her roles in movies like "Pitch Perfect" and "Up in the Air," and has a reputation for her comedic timing and engaging personality. In the commercial, she humorously explores the question while promoting T-Mobile's services.