Benson is going to fire Mordecai if Rigby can't bring him back from a bizarre land of dudes also known as Dumptown USA.
Guest Stars:
Minty Lewis, Jason Mantzoukas, John Cygan
After Benson doesn't take home the award for Park Manager of the Year, the guys want to make him feel like a winner.
Guest Stars:
Kurtwood Smith, Roger Craig Smith, Ali Hillis, Fred Tatasciore
Rigby ruins Maellard's fancy lunch, and now he or Benson has to write a letter of resignation.
Guest Stars:
David Ogden Stiers, Linda Cardellini
Margaret really wants to host a weekly segment on the nightly local news.
Guest Stars:
Minty Lewis, Janie Haddad Tompkins, Roger Craig Smith, Jennifer Hale, Rich Sommer
Benson is determined to prove he was right about the date of the "Dome Experiment".
Guest Stars:
David Ogden Stiers, Roger Craig Smith, Andres Salaff, Ali Hillis
Rigby is on a quest for the best birthday gift for Mordecai instead of usual lame ones.
Guest Stars:
Minty Lewis, Steve Agee
Mordecai and Rigby must get Benson to stop watching cat videos.
Guest Stars:
Paul Scheer, Ali Hillis
Muscle Man and HFG get struck by lightning after a football match and lose their memory of being friends together. Will they be able to remember?
Guest Stars:
Courtenay Taylor, Roger Craig Smith, Jeff Bennett
In Regular Show's fifth installment of "Terror Tales," Benson tries to spice up the park's annual Halloween party by renting a wishmaking machine.
Guest Stars:
Minty Lewis, Roger Craig Smith, Jeff Bennett, Courtenay Taylor, Zosia Mamet
Mordecai and Rigby want to help Party Horse get back together with his girlfriend.
Guest Stars:
Adam Pally, Minty Lewis, Janie Haddad Tompkins, Chelsea Kane, John Cygan
Mordecai and Rigby mess up their sleeping cycle because of watching a TV marathon and try to fix it.
Guest Stars:
Robin Atkin Downes, Roger Craig Smith, Ali Hillis, Fred Tatasciore
After Rigby invites Eileen for his big brothers karate presentation, Mordecai gets concerned and worried when hanging out with Margaret.
Guest Stars:
Minty Lewis, Janie Haddad Tompkins, Eddie Pepitone, Roger Craig Smith, Steve Blum
Benson gets a pet pig, and asks Rigby and Mordecai to look after it for him.
Guest Stars:
Roger Craig Smith, Jeff Bennett, Vanessa Marshall, James Adomian
Rigby goes back to High School to study rocks, but wants to keep it a secret from Eileen.
Guest Stars:
Minty Lewis, Janie Haddad Tompkins, Amy Sedaris, Ben Diskin, David Koechner
In order to get high school credits, Rigby has to pass a foreign language class taught by Benson in China.
Guest Stars:
David Koechner, Awkwafina, James Hong, Elizabeth Pan, John Wusah
Rigby has to create a massively crazy fake plan in order to surprise Eileen for the first time ever.
Guest Stars:
Janie Haddad Tompkins, Minty Lewis, Roger Craig Smith, Fred Tatasciore
Pops wants to go on his favorite game show "Win That Prize," but instead gets deeply involved in the television industry.
Guest Stars:
Steve Blum, Roger Craig Smith, Jason Mantzoukas, Fred Tatasciore, Janie Haddad Tompkins
Rigby tries to get Eileen to go snow tubing.
Guest Stars:
Minty Lewis, Janie Haddad Tompkins, Rich Sommer
Benson takes place in a chili cook off that needs to be made with ingredients less than $50
Guest Stars:
Kurtwood Smith, Roger Craig Smith, John Cygan
Mordecai, Rigby, Muscle Man, and High-Five Ghost are watching their favorite "Terrible-Horror" movie "Donut Factory Holiday". They have to get it back to the video store soon, but then they can't get it out of the VCR.
Guest Stars:
Minty Lewis, Roger Craig Smith, Ali Hillis, John Cygan
Rigby's high school nemesis returns and threatens to ruin his chances at passing gym class and graduating high school.
Guest Stars:
David Koechner, Roger Craig Smith, Ben Diskin, Chelsea Kane
The bros go on a second adventure before Thomas goes into hiding as an agent.
Guest Stars:
Roger Craig Smith, Steve Blum
Mordecai and Rigby unplug some cables to an old synthesizer, and they have to travel to the planet of Synthos with Skips in order to re-connect them and bring Gary back to life.
Guest Stars:
Robin Atkin Downes, David Kaye, Troy Baker
Rigby goes to the dump to get back his trampoline that he regrets throwing away.
Guest Stars:
Jemaine Clement, Minty Lewis, Roger Craig Smith, Ali Hillis, Steve Agee
Muscle Man is sick of being used for all the strong jobs at the park. So he decides to work at an office to show people he's smart too.
Guest Stars:
Roger Craig Smith
Mordecai and Rigby take a job for receiving Mr. Maellard's package, which is very important.
Guest Stars:
David Ogden Stiers, John Cygan, Ali Hillis
Rigby wants to take Eileen to his school prom.
Guest Stars:
Julián Rebolledo, Eddie Pepitone, Minty Lewis, David Koechner, Ben Diskin
The guys have to protect a large red button from being pushed.
Guest Stars:
David Ogden Stiers, Roger Craig Smith, Troy Baker, Ben Diskin
The guys must get Muscle Man's favorite shirt back on him before he awakes.
Guest Stars:
Troy Baker, Ali Hillis, Fred Tatasciore
Pops thinks he's mysteriously in medieval times and a wizard named Marvolo.
Guest Stars:
Courtenay Taylor, Roger Craig Smith
Mordecai, Rigby, and Pops go camping to see Pops' favorite planet through his telescope.
Guest Stars:
David Ogden Stiers
Benson try to win over a dome employee named Pam by sneaking her hot wings.
Guest Stars:
Ali Hillis, Troy Baker
The head scientist puts Mordecai and Rigby on a 24-hour lock down inside the Dome, but they want to sneak out and see one of their favorite bands.
Guest Stars:
Janie Haddad Tompkins, Troy Baker, Rich Sommer, James Adomian, David Kaye
The guys hope to be VIPs at Cheeser's.
Guest Stars:
Minty Lewis, Ali Hillis, Steve Blum
Mordecai and Rigby have to sneak into the dome laboratory to get Benson's keys back.
Guest Stars:
Troy Baker, Roger Craig Smith, Janie Haddad Tompkins, Ben Diskin

28 Episodes