I forgot my username. What should I do? (iOS) July 29, 2020 17:45 Updated Tap "Log In" at the top of the home tab. If you forgot your username, tap on "Forgot username." We'll send your username to the email associated with your account. Related articles What is the Cartoon Network Climate Champions campaign? I forgot my passcode. What do I do? (iOS) How do I create an account? (Android) Why do I need an account? I forgot my username. What should I do? (Android)