Listen to what the scratch cat says, then hit the arrows to go to the next character/characters. hit the see inside button to record audio. say in the audition what you are auditioning for just in case you record for the wrong character. copy and paste your recording on the sound effect on the audition button that says that. Make sure to hit the remix button and the share button.
Here is a list of which characters have voice actors: Happy frog: @JD—boom Orville elephant: Open Mr. Hippo: Open Nedd Bear: Open Pigpatch: Open Afton: Open Rockstar Bonnie: Open Rockstar Chica: Open Rockstar Freddy: Open Rockstar Foxy: Open Lefty: Open Security Puppet: Open