Alex Greenwald
Rex (voice)
?
Chris M. Allport
Edsel the Dinosaur (voice)
Eileen Brennan
Rose (voice)
Christine Cavanaugh
Knock / Ping (voice)
Josh Keaton
Tucker (voice)
?
Raymond McLeod
Sanitation Engineer Dinosaur / Department Store PA (voice)
Elisabeth Moss
Turbo (voice)
?
Megan Pryor
Ethel (voice)
Susan Blu
Ping (voice)