Her first appearance was in Sonic the Hedgehog (IDW Publishing) issue #8. She has appeared (during Ian Flynn's run) in issues #9, 10, 11, 12, 21, 22, 24, 25, 26, 28, 29, 30, 31 and 32. She starred in the story "Bonds of Friendship" in the Sonic the Hedgehog Annual 2019. She also had her own spin-off 4-issue mini-series called "Sonic the Hedgehog: Tangle & Whisper", written by Evan Stanley. She is also a playable character in the mobile games Sonic Dash and Sonic Forces: Speed Battle. She has yet to appear in Stanley's run, which began with issue #33.

Whisper is the distilled, epitome of cute and adorable. You always want to give her a big hug and tell her everything is going to be okay.