It's possible that:
* The name is misspelled: There may be a slight variation in the spelling.
* The person is not well-known: There are many talented individuals working in the film and television industry, and some may not have a public profile.
* The information is not publicly available: Personal information, especially about someone not in the public eye, may not be readily available.
To get a more accurate response, you might consider providing more details about Johanna Kirby, such as:
* Possible alternate spellings of her name
* Any specific roles or projects you think she might have been in
* Any other information you might have about her, such as her occupation or location.
With more information, I may be able to assist you further.