ToonDoo is an online comic-creating tool. You can sign up for free, or pay for an educational version.
Find these and other great manga style characters under the ‘special’ tab (indicated by stars) in the ToonDoo maker.
This site also has the option to create your own cartoon characters, calledTraitR. What a fun way to explore describing what people look like in other languages. Students could create their own characters, then describe what they look like, or create a character from the description the teacher provides. Students could use it for self description too, as you can upload a photo as a reference – I had lots of fun creating a cartoon of myself!