D.W. Read (voice)

Nadine Flumberghast (voice)

Arthur Read / Ruthra (voice)

Buster Baxter (voice)

Ladonna Compson / Cyborg Cyndi (voice)

Bud Compson / Muk (voice)

Emily / Filomena (voice)

Timmy Tibble / Bobbleboo (voice)

Tommy Tibble / Bobblebay (voice)

Nigel Ratburn (voice)

The Brain (voice)

Kate Read (voice)

Muffy Crosswire (voice)

David Read (voice)

Jane Read (voice)

Planetarium Narrator (voice)