10 Celebrity Guest Stars You Might've Missed In 'Rick And Morty'

Rick and Morty (2013) is back! And a "hundred years of Rick and Morty" also means we get a hundred years of celebrity guest stars. While that number is certainly ambitious, the series has already racked up a strong roster of celebrity cameos. 

While I can't list every single one of them, here are some of the more underrated or perhaps unknown Rick and Morty guest star roles you might've missed, especially if you tend to skip the credits. (But also, stop doing that if you do! Rick and Morty's end-credits scenes are an essential experience.) Catch up with the show on Hulu, Disney+, and more. 

Keegan-Michael Key and Jordan Peele as Time Cops

Season 2, Episode 1, "A Rickle in Time" 

Comedy fans need no introduction to Keegan-Michael Key or Jordan Peele. The duo first met on MADtv (1995), which kick-started a creative partnership that ultimately resulted in their sketch show Key & Peele (2012). While they each have their own careers—with Peele also branching out into horror—they frequently appear together, like in Fargo (2014), Toy Story 4 (2019), and Wendell & Wild (2022). 

That also applies to Rick and Morty, where they guest-starred as Time Cops together in Season 2's "A Rickle in Time." Since then, Key has reprised the role and appeared in a few other guest spots on the series. While Peele only appeared in this one episode, it remains a memorable performance nonetheless.

Paul Giamatti as Story Lord

Season 4, Episode 6, "Never Ricking Morty"

Technically, Story Lord appears in two episodes of Rick and Morty: "Never Ricking Morty" and "Full Meta Jackrick." However, "Never Ricking Morty" marks his debut. While both episodes are pretty divisive, given all the fourth-wall breaking and meta concept, most people agree that Paul Giamatti brings all the right vibes and energy to the role. 

Giamatti has no shortage of roles in his filmography. While millennials and older probably know him best from films like Cinderella Man (2005) and Big Fat Liar (2002), one of his best roles—at least in my opinion—is in The Holdovers (2023). 

Alison Brie as Planetina

Season 5, Episode 3, "A Rickconvenient Mort"

If you're looking for Rick and Morty's usual brand of dark, zany comedy, "A Rickconvenient Mort" isn't it. Here, Alison Brie plays Planetina, a parody of Captain Planet, in a surprisingly emotional coming-of-age-esque episode about teenage love. 

Brie brings the right amount of heart to the eco-superhero with the perfect tinge of comedy, and it makes sense. Brie is probably best known for playing Annie Edison on the sitcom Community (2009), although Mad Men (2007) and GLOW (2017) are other fan favorites. 

Peter Dinklage as Chans

Season 6, Episode 2, "Rick: A Mort Well Lived"

Truthfully, Peter Dinklage's voice is pretty recognizable, even when playing Chans, a ridiculous alien parody of Die Hard's Hans Gruber. And yes, Dinklage riffs on Alan Rickman's famous portrayal of the character, just with a more over-the-top comedic age. So, if you're a fan of the Die Hard movies, particularly the first one, this is the episode for you.

While Dinklage has been in all sorts of projects from Nip/Tuck (2003) to X-Men: Days of Future Past (2014), he is most well-known and loved for playing Tyrion Lannister in Game of Thrones (2011). From his recognizable voice to his unwavering stage presence, Dinklage is always a delight, both in live-action and animation.  

Daniel Radcliffe as a Knight of the Sun

Season 6, Episode 9, "A Rick in King Mortur's Mort"

Like Dinklage, Daniel Radcliffe has one role we all know him for: Harry Potter. While the eight-part film series undoubtedly put him on the map, Radcliffe has had quite the career since stepping away from the Wizarding World. From Broadway productions to surreal dramas like A24's Swiss Army Man (2026), the actor isn't afraid to try something new and get weird. 

That certainly shows in "A Rick in King Mortur's Mort," where he plays a Knight of the Sun. Here, he primarily relays the history of the knights and recounts Rick and Morty's "heroic deaths" in the vat of acid. However, Radcliffe isn't the only famous knight in this episode. Jack Black, Matt King, David Mitchell, and Robert Webb also appear alongside him. 

Danny DeVito as Dr. Dogballs

Season 8, Episode 6, "The CuRicksous Case of Bethjamin Button"

If you've seen Batman Returns (1992) or Matilda (1996), then you already know that Danny DeVito knows how to play a villain. And if you're a fan of It's Always Sunny in Philadelphia (2005), then you also know that he excels at getting gross and despicable. Put it all together, and it makes sense that Rick and Morty fans petitioned for a DeVito guest role for some time. 

Those wishes came true in Season 8, when DeVito voiced Dr. Dogballs, the mad-scientist creator of Earthworld, Rick's once-favorite theme park. To no one's surprise, DeVito kills it as Dogballs and even gets to have some fun with a meta death, where he is [spoiler!] killed by a bunch of Danny DeVito park mascots. 

Charlie Day as Salvatron

Season 8, Episode 9, "Morty Daddy"

Speaking of Danny DeVito, his Always Sunny co-star, Charlie Day, also guest-starred in a Season 8 episode of Rick and Morty. Day's role isn't quite as exciting or as meta as DeVito's. Instead, he voices Salvatron, a Rick-built tower used to sort garbage in the Trash Dimension because, well, somebody or something has to do it. 

While Day is certainly best known for Always Sunny, you might also remember him in Pacific Rim (2013) and Horrible Bosses (2011). Day also dabbles in voice acting, with memorable roles in The Lego Movie (2014) and, of course, as Luigi in The Super Mario Bros. Movie (2023) and its sequel, The Super Mario Galaxy Movie (2026).   

John Rhys-Davies as BugAnne's Father

Season 8, Episode 10, "Hot Rick" 

I can't call Dinklage and DeVito's voices recognizable without also mentioning John Rhys-Davies. Deep and hearty with his distinctive Welsh accent, Rhys-Davies' voice is iconic both in and out of character. The two roles that inarguably define his career are Gimli in Peter Jackson's The Lord of the Rings trilogy and Sallah in the Indiana Jones franchise. 

His guest role as BugAnne's Father ultimately feels fitting. Here, his booming voice does wonders to bring the domineering king to life. And given Rhys-Davies' involvement in multiple fantasy/adventure movies, the medieval-style content of the episode feels more than fitting. 

Tilda Swinton as The Collective

Season 9, Episode 1, "There's Something About Morty"

Season 9 of Rick and Morty kicked off with a bang by introducing The Collective, a powerful multiversal being that absorbs entire universes and technology, which requires Evil Morty and Rick to team up to defeat it. That said, it isn't easy to play such a strange, omnipotent being, but Tilda Swinton nails it. 

Looking at Swinton's filmography proves she has the perfect experience for unique roles like this. She famously plays the androgynous fallen angel, Gabriel, in Constantine (2005) and a similarly unique and eerie vampire in Only Lovers Left Alive (2013). Let's also mention her completely unrecognizable roles as three different characters in 2018's Suspiria. Truly, the list could go on and on, but the point is that Swinton is the person to call when you need a bizarre role filled.    

Owen Wilson as Reese 

Season 9, Episode 4, "A Ricker Runs Through It" 

Owen Wilson is a frequent collaborator with Wes Anderson, appearing in a number of the director's movies like Rushmore (1998) and The Royal Tenenbaums (2001), to name a few. While he has also done multiple romantic comedies, most people probably consider Wilson a comedic actor, thanks to favorites like Meet the Parents (2000), Zoolander (2001), and Wedding Crashers (2005). 

His guest role in Rick and Morty straddles genres in some ways. Here, he plays Reese, an old friend of Rick's… but, of course, there's a twist. Without going too much into spoiler territory, Wilson gets to balance his comedic chops with a part that has a surprising amount of heart and a big effect on Morty.