"viewers". One of the producers usually answers these calls, sometimes two producers appear at the same time, and almost always with Liz. One of the producers is an African-American male voiced by Malcolm-Jamal Warner. Another producer is an Asian female voiced by Susan Blu. Other characters have appeared in the producer segments, including characters from the episode, as well as a ghost that appears only in "In the Haunted House" (Voiced by Catherine Thompson). This segment is based on the comedic disclaimer pages at the end of the books. In The Magic School Bus Rides Again, the producers are replaced by Professor Frizzle, who takes calls while conducting her research or going on adventures. References Fictional bus drivers Fictional schoolteachers Magic School Bus Magic School Bus , Magic School Bus , Magic School Bus The Magic School Bus