Adam DeVine as Sam-I-Am, a main protagonist who likes green eggs and ham
Micheal Douglas as Guy-Am-I, a grumpy guy who does not like green eggs and ham for Sam’s special meal
Ilana Glazer as E.B., a 10 year old girl with her energetic personality
Diane Keaton as Michellee, E.B.’s mother who has a heartfelt appreciation for Guy’s love
Patricia Clarkson as Pam-I-Am, Sam’s mother who lives in East Flurbia or Zookia
Matt Stone as Triborg, Pam’s husband and Sam’s father who lives in Zookia
John Turturro as Goat, a bounty hunter
Rob Brydon as Philip Trousers, a antagonist who lives in Zookia
Gwendoline Christie as Marilyn Blouse, another antagonist who lives in Zookia too
Tracy Morgan as Fox, also known as Micheal the Fox
Daveed Diggs as Mouse, also known as Squeaky the Mouse
Brad Abrell as House (Warmth voice), a talking cozy house
Chris Diamantopoulos as Box (Playful voice), a talking playful cardboard box
Keith Ferguson as Car, a talking red and black automotive with his gray lips
David Pressman as Horn (Car’s buddy), he is Car’s buddy who loves to make melodic sounds
Kari Wahlgren as Tree (Male, Older Boy/Kid)/Daisy (Female, High voice), a talking yellow tree with light brown branches and a talking white flower
David Kaye as Train (Deep voice red locomotive diesel)/Cuckoo the Train Whistle (Low voice golden train whistle), a talking mighty red diesel with black wheels, and a golden train whistle with a one eye on his face
Fred Tatasciore as Yes Man/Dark (Low, enigmatic voice character), a yellow furred-Knox with an scared look, and a mysterious creature who shares his mystery riddles
Grey DeLisle as Rain (Female, Melodic Voice), a talking melodic raindrop
Nika Futterman as Lightning Bolt (Female), a talking lightning bolt with her red cap
Billy Eichner as Boat (Male, deep voice red and white vessel), a red and white vessel with his captain’s hat