April was originally voiced by Renae Jacobs. In the 25th Anniversary crossover TV special "Turtles Forever", she was voiced by Rebecca Soler. Renae Jacobs auditioned for the role in Los Angeles in 1986. She developed her initial personification of O'Neil while preparing for the audition, having not read the comics. Her first day on set voice director Stu Rosen made it clear he did not approve of her for the role, and had waited to show her audition last, saying to her, "Every one I played, the producers said ‘No, no, no, that’s not April,’ and finally I was out of people to show them, so I pulled your audition out and played it for them and they said ‘That’s April!’"