Mayim Bialik is now the guest host for “Jeopardy!”

Sony announced Bialik will be filling in as a replacement for Mike Richards who resigned from the esteemed position this week.

The Big Bang Theory star is now scheduled to tape three weeks’ worth of programs i.e. a total of 15 episodes when “Jeopardy!” resumes production this week. The actress was already on the schedule to host prime-time spinoffs and specials for the game show and will be hosting spinoffs and specials even though Sony will be announcing “additional guest hosts” for its current season.

Just last week Bialik, who has earned a doctorate in neuroscience, came under fire after she was accused of spreading “vaccine doubt and hawks brain quackery” even though she is vaccinated.

The 40-year-old representative told The Wrap, “She has been fully vaccinated for the COVID-19 virus and is not at all an anti-vaxxer.”

The actress also published a detailed video where she explained her stand when it comes to vaccines, saying, “I have never, not once, said that vaccines are not valuable, not useful, or not necessary — because they are.”

Mike Richards, 46, had stepped down from his position as the host of “Jeopardy!” after past allegations rose about his sexist language and self-acknowledged “insensitivity.”