[4] She originally wanted to be an actress in shinpa, but she was unable to perform any of the required arts, and she expected that it would change if it was taught at a low price.
[4] She was also a member of three voice acting offices: Gekidankawa [ja] the Tokyo Actor's Consumer's Cooperative Society, and Sigma Seven.
[3] For about 10 years since the broadcast started, Katō played freely and ad libitum, but later decided to use scripts after self-reflecting that the scriptwriters are not actors if they are not writing every word.
[3] This was because Kazue Takahashi, who was the second voice actor of Katsuo, was able to do his words perfectly without being affected by Kato's ad libitum acting.
[8] Officials from the Imperial Household Agency reported that Aiko, Princess Toshi was able to recognize Katō's voice as Sazae's.
[7] In 2013 Guinness World Records recognized Sazae-san as the longest running animated series, surpassing The Simpsons which went on air in 1989.
[10] With the death of Takako Sasuga in 2023, Kato became the only cast member to continue appearing in the series since the first episode, making her the oldest.
In an interview with The New York Times, she predicted that she would continue to voice-act “as long as I'm healthy and alive,” and revealed that she does not drink or smoke and does not stay out late at night for her role as Sazae.