Mok's Computer is the secondary antagonist in Rock & Rule. It served as Mok's computer. It was voiced by Samantha Langevin.
Mok's Computer first appeared in Mok's limbo talking with him about finding the voice. Later on, the computer was with Mok in his lab room, where it revealed the contents of the singing voice. Eventually, Mok could be stopped, with the computer telling him there is a force that can send the being back. The computer last appeared talking with Mok in the bridge room of his ship. It's fate is unknown after this.