Rob Schneider as Dodger (voice)

Melanie Griffith as Tyra (voice)

William Baldwin as Sarco (voice)

Jane Lynch as Sue Fitzpatrick (voice)

Pamela Adlon as Ernie Fitzpatrick (voice)

Tara Strong as Julia Fitzpatrick (voice)

Stephen Baldwin as Surly (voice)

Yuri Lowenthal as Max Santiago (voice)

Grey DeLisle as Baby T-rex (voice)

Fred Tatasciore as Dr. Santiago (voice)

Tom Kenny as Borace / Burger Attendant / Guard #2 / Tour Guide (voice)

Nolan North as Morris / Guard #3 (voice)

John DiMaggio as Horace / Big Guard (voice)

Dee Bradley Baker as Dinosaur Vocal Effects (voice)

Jessica DiCicco as Additional Voices (voice)

Roger Craig Smith as Additional Voices (voice)

Ben Diskin as Additional Voices (voice)

Kari Wahlgren as Additional Voices (voice)

Dawnn Lewis as Additional Voices (voice)

Mary Elizabeth McGlynn as Additional Voices (voice)

Jamie Simone as Additional Voices (voice)

Melanie Abramoff as Additional Voices (voice)

Megan Lovegren as Additional Voices (voice)