The show's first season consists of 11 twenty-two minute episodes. After airing the first six episodes, [adult swim] renewed the show for a second season. 
The show was based on a series of crudely animated short films for Channel 101 based on a Back to the Future parody "Doc and Mharti", known for their crude content, "The Real Animated Adventures of Doc and Mharti"; by Justin Roiland.
The show centers around the titular characters Rick and Morty. Rick is a mentally gifted, but sociopathic and alcoholic scientist and a grandfather to Morty; an awkward, impressionable, and somewhat spineless teenage boy. Rick moves into the family home of Morty, where he immediately becomes a bad influence.
- Rick (voiced by Justin Roiland) – A genius scientist and alcoholic whose inventions and experiments serve as the basis for the episodes. The grandfather of Morty Smith and the father of Beth. Rick used to have been absent from the family for years, until he finally returned, a short amount of time before the Pilot episode to live with the Smith family, much to the disapproval of Jerry. He currently resigns in the garage of the Smith house where his entire laboratory is at. Here, he builds new inventions, travels to other dimensions, and tests things out on forms of alien life.
- Morty (voiced by Justin Roiland) – Rick's impressionable and socially awkward teenage grandson who is often dragged along on his grandfather's escapades. Morty is a wimpy and nervous wreck who desperately tries to keep his sanity when taken on the bizarre and terrifyingly mind-bending adventures that Rick takes him on, which is already big enough of a problem as he already struggles to fit in at his own high school.
- Jerry (voiced by Chris Parnell) – Morty's insecure father, whose disapproval of Rick's influence on Morty only deepens his marital troubles with Beth. Jerry constantly finds himself to be in a failing marriage with his wife as they always argue and never express the love for each other that most normal parents do.
- Beth (voiced by Sarah Chalke) – Morty's holier-than-thou mother, and a cardiac surgeon for horses. Beth seems to have problems in her marriage with Jerry and usually considers leaving him for another guy.
- Summer (voiced by Spencer Grammer) – Morty's angst-ridden older sister who occasionally joins Rick on his adventures. She only cares about her friends and social life at school and is very unattached with her family with the slight exception of Rick.
- Jessica (voiced by Kari Wahlgren) – A classmate of Morty's that he has a crush on. Jessica is unaware of Morty's feelings for her and it is unknown if she feels the same way. As of now, she is only a friend.
- Mr. Goldenfold (voiced by Brandon Johnson) – Morty's psychopathic math teacher with severe anger issues who has some pretty negative interactions with Morty and his inability to stay focused on his work and learn how to do anything correctly.
- Gene Vagina (voiced by Phil Hendrie) – The principal of Harry Herpson High School with the unfortunate, humiliating last name of Vagina which makes him very insecure about his masculinity. He is good friends with Mr. Goldenfold.
- Brad (voiced by Echo Kellum) – A student at Harry Herpson High School and a tough jock who plays sports for the high school (most likely football). He is the douchebag boyfriend of Jessica, much to Morty's jealousy. Brad also serves as sort of a school bully to Morty, as he was seen yelling at him in the halls, labeling him and telling him to stay in his league when it came to talking to Jessica, as well as attempting to beat him up at the flu awareness dance in the episode Rick Potion #9.
- Ethan (voiced by Daniel Benson) – The boyfriend of Summer of which Jerry slightly disapproves of.
- Davin (voiced by Phil Hendrie) – A friendly co-worker of Beth's at the horse vet, who is a bit too friendly as he is constantly seen hitting on her, much to Jerry's jealousy despite the fact that Beth has shown absolutely no affection toward him in return, and at the same time, no rejection either other than her telling Jerry that she doesn't like him when he's not around.
- Mr. Meeseeks (voiced by Justin Roiland) – Creatures summoned by activating a Meeseeks Box, existing until they fulfilled the purpose they are assigned. However, as seen with the difficulty with fulfilling Jerry's wish, the Mr. Meeseeks he summoned and the others that follow go insane from existing for too long to the point of taking extreme measures to fulfill Jerry's request. Their only major role was in the episode Meeseeks and Destroy, but they have made many cameos and easter eggs in subsequent episodes.
- Birdperson (voiced by Dan Harmon) – A wise human-bird hybrid, and a long time friend of Rick's that first appeared in the episode Rixty Minutes. He was married to Tammy Gueterman in the final episode of Season 2. Who was later revealed to be a spy from the Galactic Federation, and shot him multiple times with a laser pistol. His current status is unknown, though he is presumed dead.
- Tammy Gueterman(voiced by Cassie Steele) – Summer's High School friend, and Birdperson's wife, who is later revealed to be an undercover spy for the Galactic Federation.
|Season premiere||Season finale|
|1||11||December 2, 2013||April 14, 2014|
|2||10||July 26, 2015||October 4, 2015|
|Screenshot||Episode||Title||Original airdate||Viewers (in millions)|
|1||"Pilot"||December 2, 2013||1.095|
|Rick moves in with his daughter's family and establishes himself as a bad influence on his grandson, Morty.|
|2||"Lawnmower Dog"||December 9, 2013||1.510|
|Rick helps Jerry out with the dog, Snuffles. Don't even trip about this episode because they also incept the dreams of Mr. Goldenfold.|
|3||"Anatomy Park"||December 16, 2013||1.302|
|On this Christmas-themed episode, Jerry forces the family to bond during the holiday. Rick shrinks Morty in size to enter his creation, Anatomy Park.|
|4||"M. Night Shaym-Aliens!"||January 13, 2014||1.476|
|Rick, Morty, and Jerry find themselves trapped in a life-like simulation by an alien race of intergalactic scammers known as the Zigerions.|
|5||"Meeseeks and Destroy"||January 20, 2014||1.610|
|Morty makes a bet with Rick that he can lead a fun, successful adventure. Jerry, Beth, and Summer summon various helpers named Mr. Meeseeks to help solve their problems.|
|6||"Rick Potion No. 9"||January 27, 2014||1.746|
|Morty asks Rick to brew him up a love potion to gain the affections of Jessica, but the potion fuses with an airborne flu virus and infects the worldwide population.|
|7||"Raising Gazorpazorp"||March 10, 2014||1.762|
|When Morty asks Rick to buy him a sex robot from a space pawn shop, it concieves his own half-alien son, leading Rick and Summer to investigate the robot's planet of origin.|
|8||"Rixty Minutes"||March 17, 2014||1.477|
|Rick installs a device within the family's TV set allowing them to watch shows from all possible realities, causing Jerry and Beth to contemplate their past decisions.|
|9||"Something Ricked This Way Comes"||March 24, 2014||1.543|
|Summer gets a job at a strange shop selling eccentric, cursed items, Jerry commits himself to helping Morty on a science project.|
|10||"Close Rick-counters of the Rick Kind"||April 7, 2014||1.750|
|Rick and Morty are imprisoned by a council of Rick's across alternate timelines for a crime they didn't commit, Jerry bonds with an alternate-reality Rick.|
|11||"Ricksy Business"||April 14, 2014||1.823|
|Rick hosts a party while Beth and Jerry are away.|
|Screenshot||Episode||Title||Original airdate||Viewers (in millions)|
|1||"A Rickle in Time"||July 26, 2015||2.123|
|Unfreezing time has major conseqences for Rick, Morty, and Summer. Meanwhile, Jerry and Beth attempt to save the life of an injured deer.|
|2||"Mortynight Run"||August 2, 2015||2.185|
|Morty attempts to save the life of a gaseous alien much to the dismay of Rick. Jerry is dropped off into an intergalactic 'Jerry daycare'.|
|3||"Auto Erotic Assimilation"||August 9, 2015||1.94|
|Rick follows a distress call to a planet inhabited by one of his former lovers, a hive mind organism named Unity. Jerry and Beth find a bunker built by Rick under their garage, in which he has imprisoned an alien.|
|4||"Total Rickall"||August 16, 2015||1.96|
|Trapped inside the house with an ever-increasing number of parasitic alien shape-shifters capable of altering memories, an uncertain Rick and the Smiths search for a way to determine which of them are real.|
|5||"Get Schwifty"||August 23, 2015||2.12|
|When a massive head descends into Earth's atmosphere, Rick and Morty must save the planet by coming up with a new hit song. Meanwhile, Jerry, Beth, and Summer become part of a new religion based around worshiping the being and others like him.|
|6||"The Ricks Must Be Crazy"||August 30, 2015||1.91|
|Rick and Morty travel inside the car's battery, where Morty discovers Rick has created a universe containing sentient life solely to produce power for him. Meanwhile, Summer must deal with being locked in the car with Rick's overzealous security system.|
|7||"Big Trouble In Little Sanchez"||September 13, 2015||1.97|
|Rick joins in on hijinks, Beth and Jerry sort out relationship issues.|
|8||"Interdimensional Cable 2: Tempting Fate"||September 20, 2015||1.79|
|Jerry gets sick and is transported to an alien hospital while Rick sparks up the TV with the rest of the family.|
|9||"Look Who's Purging Now"||September 27, 2015||1.89|
|Rick and Morty visit and become trapped on a planet with a murderous yearly event known as The Purge.|
|10||"The Wedding Squanchers"||October 4, 2015||TBD|
|Tammy and Birdperson tie the knot, the Smith family deals with adversity.|