I have an app idea which is based on the use of cartoon characters, I would like to include a single image of cartoon characters with their names, the app will be purely for reference and free.

However I'm worried that as most cartoon characters are copyrighted I could be subject to legal action or am I covered by fair use?

I know there are some cartoon characters which can be used as they are in the public domain however they are very limited.

Any advice would be appreciated, Sami.

I have an app idea which is based on the use of cartoon characters; I would like to include a single image of cartoon characters with their names, the app will be purely for reference and free.

However, I'm worried that as most cartoon characters are copyrighted I could be subject to legal action. Am I covered by fair use?

I know there are some cartoon characters which can be used as they are in the public domain however there are very few of them.