This article's content is marked as Mature
The page Mature contains mature content that may include coarse language, sexual references, and/or graphic violent images which may be disturbing to some. Mature pages are recommended for those who are 18 years of age and older.

If you are 18 years or older or are comfortable with graphic material, you are free to view this page. Otherwise, you should close this page and view another page.

Tammy Guetermann is the central antagonist of the Adult Swim cartoon series Rick and Morty. She appears as the main antagonist of the episode "The Wedding Squanchers" and as a cameo antagonist in the episode "The Rickshank Rickdemption". She's a student at Harry Herpson High School and a close friend of Summer Smith before she's revealed to actually be an undercover agent and spy for the Galactic Federation at the wedding between herself and Birdperson, whom she betrays and kills. Following the destruction of the Federation at the hands of Rick Sanchez, Tammy became the leader of the remnants and will likely return as a major antagonist.

She is voiced by Cassie Steele. 


Tammy first appears in the episode "Meeseeks and Destroy" where she appears in the audience at Summer's high school during a presentation about the benefits of being friends with Summer by Mr. Meeseeks and appears gathering around Summer after the event. Tammy also appears in the episode "Rick Potion No. 9" where she makes a cameo appearance and dies in the episode. An alternate version of Tammy would later appear in the episode "Ricksy Business" in her first major role in the series where she attends a party being held by Summer Smith. 

She appears at the party and has one of the guests, Chad, mess up her hair so she can appear drunk and meets Birdperson while at the party. She starts talking to him despite him being apprehensive about Tammy's desires and tells her that he's not looking for someone to soul-bond with. Tammy, however, whispers something into his ears to which Birdperson replies by saying that he can "arrange something" and she ends up going home with him after the party is over. In the episode "Get Schwifty", Tammy appears in Birdperson's home wearing nothing but a robe, implying that their relationship had continued, and makes a sly innuendo that makes Birdperson uncomfortable and later watches the events being transmitted on Earth in horror. 

Tammy makes her second major role in the season two finale "The Wedding Squanchers" where she's getting married to Birdperson and holds a reception to celebrate the occasion. During the event however, Tammy stands up and reveals herself to actually be an agent of the Galactic Federation and proceeds to shoot Birdperson and has the entire audience put under arrest. A shoot out breaks out and she attempts to kill Rick, but is stopped by some of the party guests who attack other Federation forces sent in and is last seen falling over with Squanchy stepping on her foot. It's also revealed that Tammy parents, Pat and Donna Gueterman, were actually cyborgs and were spies for the Galactic Federation who attack and attempt to kill Beth and Jerry Smith.

After the events of the episode, Tammy survives and her mission was a success as Rick Sanchez was actually imprisoned by the Galactic Federation after he turned himself in to protect the rest of the Smith family and returns to an unknown federation base. During the season three episode "The Rickshank Redemption", the Galactic Federation is brought down and collapses at the hands of Rick; however, Tammy is revealed to have survived the entire event and is now the leader of the surviving remnants of the Galactic Federation. On her request, Birdperson's corpse is brought back and he's revived as Phoenixperson.



  • Even before the Galactic Federation served as the main antagonists in "Wedding Squanchers", Tammy served as The Heavy because if it wasn't for her honey pot operation, they never would have been able to arrest Rick.



Ricks and Mortys
Rick Sanchez | Council of Ricks | Evil Rick | Evil Morty | Tiny Rick | Toxic Rick | Toxic Morty | Cop Morty | Big Morty | Rick D. Sanchez III | Shadow Council of Ricks

Galactic Federation
Tammy Guetermann | Cornvelious Daniel | Gromflomites

Frank Palicky | Snowball | Scary Terry | Poncho | Prince Nebulon | King Jellybean | Gazorpians | King Flippy Nips | Lucius Needful | Lucy | Krombopulos Michael | Alien Parasites | Cromulons | General Nathan | The President | Zeep Xanflorp | Beth's Mytholog | Cat People | Agency Director | Concerto | Supernova | Worldender | Gearhead | Risotto Groupon

Community content is available under CC-BY-SA unless otherwise noted.