Justin Roiland
Rick Sanchez / Morty Smith (voice) (74 eps)
Spencer Grammer
Summer Smith (voice) (73 eps)
Chris Parnell
Jerry Smith (voice) (71 eps)
Sarah Chalke
Beth Smith (voice) (71 eps)
Kari Wahlgren
Jessica (voice) (37 eps)
Dan Harmon
Additional Voices (voice) (31 eps)
Maurice LaMarche
Additional Voices (voice) (29 eps)
Tom Kenny
Additional Voices (voice) (27 eps)
Ryan Ridley
Additional Voices (voice) (22 eps)
Brandon Johnson
Mr. Goldenfold (voice) (21 eps)
Nolan North
Additional Voices (voice) (21 eps)
Cassie Steele
Tammy Gueterman (voice) (14 eps)
Rob Schrab
(voice) (11 eps)
Ian Cardoni
Rick Sanchez (voice) (10 eps)
Harry Belden
Morty Smith (voice) (10 eps)
Keith David
President/Governor Andre Curtis (voice) (10 eps)
Echo Kellum
(voice) (10 eps)
Nick Reczynski
(voice) (10 eps)
Phil Hendrie
Principal Gene Vagina (voice) (9 eps)
Troy Baker
(voice) (7 eps)
Rob Paulsen
Additional Voices (voice) (5 eps)
Scott Chernoff
Gear Head (voice) (5 eps)
Tara Strong
Additional Voices (voice) (5 eps)
John DiMaggio
Trandor (voice) (5 eps)
Eric Bauza
(voice) (5 eps)
Lauren Tom
Kendra (voice) (5 eps)
Susan Sarandon
Dr. Helen Wong (voice) (4 eps)
Albro Lundy
(voice) (4 eps)
Jess Harnell
Scary Terry / Dog Soldier 2 (voice) (3 eps)
Will Jennings
Child Roy (voice) (3 eps)
Dan Benson
Ethan (voice) (3 eps)
Tress MacNeille
Mrs. Tate / Party Guest 1 (voice) (3 eps)
William Holmes
Additional Voices (voice) (3 eps)
Alan Tudyk
Jeff (voice) (3 eps)
Chris Romano
Slow Mobius / 'Party!' Boy (voice) (3 eps)
Aislinn Paul
Nancy (voice) (3 eps)
Phil LaMarr
Additional Voices (voice) (3 eps)
Lauren Culjak
Additional Voices (voice) (3 eps)
Lee Harting
(voice) (3 eps)
James Adomian
(voice) (3 eps)
Debra Wilson
(voice) (3 eps)
Melique Berger
Jacqueline / Mrs. Pancakes (voice) (2 eps)
Jackie Buscarino
Annie / Train Announcement (voice) (2 eps)
Christina Hendricks
Unity (voice) (2 eps)
Clancy Brown
Vengeful Train Passenger (voice) (2 eps)
Keegan-Michael Key
Fourth-Dimensional Being (voice) (2 eps)
Paul Giamatti
Storylord (voice) (2 eps)
Christopher Meloni
Jesus Christ (voice) (2 eps)
Claudia Black
Ventriloquiver (voice) (2 eps)
Patricia Lentz
Joyce Smith (voice) (2 eps)
Peter Serafinowicz
Agency Director (voice) (2 eps)
Sherri Shepherd
Judge (voice) (2 eps)
Dawnn Lewis
Additional Voices (voice) (2 eps)
Pamela Adlon
Vermigurber's Child (voice) (2 eps)
Darren Criss
Additional Voices (voice) (2 eps)
Vanessa Marshall
Additional Voices (voice) (2 eps)
Maria Bamford
(voice) (2 eps)
Jon Allen
Wayne (voice) (2 eps)
Ryan Hansen
(voice) (2 eps)
Erica Lindbeck
(voice) (2 eps)
Dana Carvey
Leonard Smith (voice) (1 eps)
John Oliver
Dr. Xenon Bloom (voice) (1 eps)
Werner Herzog
Shrimply Pibbles (voice) (1 eps)
Stephen Colbert
Zeep Xanflorp (Voice) (1 eps)
Nathan Fillion
Cornvelious Daniel (voice) (1 eps)
Danny Trejo
Jaguar (voice) (1 eps)
Christian Slater
Maximus Renegade Star Soldier (voice) (1 eps)
Logic
Logic (voice) (1 eps)
Jordan Peele
Second Fourth-Dimensional Being (voice) (1 eps)
Nathan Fielder
Kyle (voice) (1 eps)
Tony Hale
Death Stalker Eli (voice) (1 eps)
Joel McHale
Hemorrhage (voice) (1 eps)
Laura Bailey
Eli's Girlfriend (voice) (1 eps)
Gillian Jacobs
Supernova (voice) (1 eps)
Lance Reddick
Alan Rails (voice) (1 eps)
Thomas Middleditch
Tommy Lipnip (voice) (1 eps)
Jennifer Hale
Keara (voice) (1 eps)
Jemaine Clement
Fart (voice) (1 eps)
Andy Daly
Krombopulos Michael (voice) (1 eps)
Patton Oswalt
Beta 7 (voice) (1 eps)
Matt Walsh
Sleepy Gary (voice) (1 eps)
A. Smith Harrison
Narrator (voice) (1 eps)
Jesse Mendel
Additional Voices (voice) (1 eps)
David Cross
Prince Nebulon / Radio Voice (voice) (1 eps)
Steve Agee
Giant / Restaurant Owner (voice) (1 eps)
Vatche Panos
Slippery Stair (voice) (1 eps)
Cree Summer
Giant Woman (voice) (1 eps)
Reagan Gomez-Preston
Jessica's Friend / Pregnant Girl on TV / Pregnant Girl on TV's Friend (voice) (1 eps)
Sarah Clarke
Gazorpian (voice) (1 eps)
Megan Adams
Criminal 2 / Assembly Line Worker (voice) (1 eps)
Finnegan Perry
Baby Morty Jr. (voice) (1 eps)
Richard Christy
Zardoz Head / Teenager Morty Jr. (voice) (1 eps)
Virginia Hey
Gazorpian (voice) (1 eps)
Jeff Bergman
Insurance Salesman / David Letterman (voice) (1 eps)
Adam Ray
Johnny / Wife Beater (voice) (1 eps)
Alfred Molina
The Devil (voice) (1 eps)
Rich Fulcher
King Flippy Nips (voice) (1 eps)
Alejandra Gollas
Lucy (voice) (1 eps)
Jay Johnston
Coldstone Creamery Employee (voice) (1 eps)
Jill Talley
Veterinarian (voice) (1 eps)
Paul F. Tompkins
Lawyer (voice) (1 eps)
Ryan Elder
Sports Announcer (voice) (1 eps)
John Kassir
Blim Blam (voice) (1 eps)
Tony Barbieri
Uncle Steve / Mr. Beauregard (voice) (1 eps)
Kevin Michael Richardson
Frankenstein / Hamurai / Mrs. Refrigerator (voice) (1 eps)
Jevin Smith
Rapper (voice) (1 eps)
Kurtwood Smith
General Nathan (voice) (1 eps)
Michael McCafferty
Microverse Mayor (voice) (1 eps)
Taika Waititi
Glootie (voice) (1 eps)
Matthew Broderick
Talking Cat (voice) (1 eps)
Liam Cunningham
Balthromar (voice) (1 eps)
Chelsea Kane
Arthricia (voice) (1 eps)
James Atkinson
Additional Voices (voice) (1 eps)
Gary Cole
Alien Doctor (voice) (1 eps)
Matt Besser
Alien Leader (voice) (1 eps)
Jim Rash
Glexo Slimslom (voice) (1 eps)
Alex Hirsch
Toby Matthews (voice) (1 eps)
Jim Gaffigan
Hoovy (voice) (1 eps)
Dustin Ybarra
Danny Publitz (voice) (1 eps)
Jeffrey Wright
Tony (voice) (1 eps)
Kathleen Turner
Monogatron Queen (voice) (1 eps)
Sam Neill
Monogatron Leader (voice) (1 eps)
Steve Buscemi
Eddie (voice) (1 eps)
Alison Brie
Planetina (voice) (1 eps)
Jennifer Coolidge
Daphne (voice) (1 eps)
Christina Ricci
Princess Ponietta / Kathy Ireland (voice) (1 eps)
Elon Musk
Elon Tusk (voice) (1 eps)
Timothy Olyphant
Coop (voice) (1 eps)
Michelle Buteau
The Sperm Queen (voice) (1 eps)
Fred Stoller
Ferkus 9 Inhabitant (voice) (1 eps)
James Callis
Pat Gueterman / Courier Flaps (voice) (1 eps)
Tricia Helfer
Donna Gueterman / Federation Robot (voice) (1 eps)
Arin Hanson
Photography Cyborgs / Three-Eyed Prisoner (voice) (1 eps)
Jeff Bryan Davis
Simple Rick's Narrator (voice) (1 eps)
Jonas Briedis
Zick Zack (voice) (1 eps)
Alex Jayne Go
Froopyland Creature (voice) (1 eps)
Asy Saavedra
Additional Voices (voice) (1 eps)
Chloe Saavedra
Additional Voices (voice) (1 eps)
Mariana Wise
Additional Voices (voice) (1 eps)
Justin Theroux
Miles Knightly (voice) (1 eps)
Daniel Bonjour
Additional Voices (voice) (1 eps)
Keegan Allen
Partygoer (voice) (1 eps)
Eddie Pepitone
Additional Voices (voice) (1 eps)
Kyle Mooney
Additional Voices (voice) (1 eps)
Adam Rodriguez
Additional Voices (voice) (1 eps)
Jeff Loveness
Additional Voices (voice) (1 eps)
Jason Paige
Additional Voices (voice) (1 eps)
Arnie Pantoja
Additional Voices (voice) (1 eps)
Peter Dinklage
Chans (voice) (1 eps)
Lisa Kudrow
Tyrannosaurus Rex (voice) (1 eps)
Jason Mraz
Brachiosaurus (voice) (1 eps)
Jack Black
Lithdor (voice) (1 eps)
Matt King
Knight of the Sun (voice) (1 eps)
David Mitchell
Knight of the Sun (voice) (1 eps)
Daniel Radcliffe
Knight of the Sun (voice) (1 eps)
Robert Webb
Knight of the Sun (voice) (1 eps)
Will Forte
Eugene Michael Piss / Pissmaster (voice) (1 eps)
John Early
Eternal (voice) (1 eps)
Diedrich Bader
Blagnar the Eternal (voice) (1 eps)
Hugh Jackman
Hugh Jackman (voice) (1 eps)
Beck Bennett
Sheriff (voice) (1 eps)
Glen Powell
Kwyatt (voice) (1 eps)
Ice-T
Magma-Q (voice) (1 eps)
Terry Ilous
(voice) (1 eps)
Maya Tuttle
(voice) (1 eps)
Liev Schreiber
Fear Hole Demon (voice) (1 eps)