Sure, there is. In fact I can think of at least two. Here is the first:
Check inside your Applications folder to see if you have Comic Life programme.
In recent years Apple has been including it in the software bundle that comes with Macs. It’s a very easy programme to make comics and includes a selection of thought bubbles. Great screeching sounds too with every step you make!
Here is a quick topical comic I made:
Read the second solution here.
If you haven't Comic Life in your Applications bundle check out plasq.com