* The name is misspelled or has a slightly different variation. Double-check the spelling or try variations (e.g., Ronald Douglas, Ronalda Douglass, etc.).
* She may be a lesser-known actress with limited online presence. You might find information in specific databases or by searching for her on IMDb or other film and television websites.
* The person may not be an actress. It's possible you're thinking of someone else with a similar name.
If you can provide any additional information about Ronalda Douglas (e.g., approximate age, any other known details about her), it might help narrow down the search.