South Park Archives
Kevin Mephesto

For other uses, see Kevin (Disambiguation).

Kevin Mephesto is a character who was first seen in the Season One episode, "An Elephant Makes Love to a Pig". He is the Dr. Alphonse Mephesto's adopted son and his lab assistant.


Kevin took on a recurring role for the first four Seasons, being almost always seen alongside Dr. Mephesto, being seen as his silent lab helper. As of Season Five, he, along with Mephesto, left their role on the show as supporting characters, making only cameos throughout the Seasons.

Kevin doesn't have much of a role in his first appearance in "An Elephant Makes Love to a Pig", being seen only as a character who follows Dr. Mephesto.

In "Starvin' Marvin", Kevin appears again following Mephesto throughout the episode, and is asked by Chef what he was supposed to be, who ends up not getting an answer.

In "Cartman's Mom is a Dirty Slut", he, along with Mephesto, are among the men who could possibly be Cartman's father. He is seen again in the sequel, "Cartman's Mom is Still a Dirty Slut", where he witnesses the crime scene of Mephesto being shot. In the scenes of America's Most Wanted, he is played by Eric Roberts. He is referred to by the narrator as the "little monkey guy" who follows Mephesto.

In "Prehistoric Ice Man", Kevin helps Mephesto take care of the recently found frozen man, including thawing him with a hammer.

He also makes relatively minor appearances in the episodes "Spontaneous Combustion", "Jakovasaurs", "Are You There God? It's Me, Jesus" and "Cartman Joins NAMBLA" , as usual, being seen alongside Mephesto.

Kevin's cameos in episodes after Season Four include "Freak Strike", where he is seen in the True Freaks Union, among one of several people with deformities of appearance, "I'm a Little Bit Country", being seen singing with Mephesto and the rest of the crowd at the end, and in "Goobacks", where he is seen singing The Future Begins With You and Me with the crowd.

Kevin finally makes another significant appearance in "201", along with Mephesto, where he is seen helping him tell Cartman about his father and witnesses Scott Tenorman's revelation to Cartman at the end after being captured by his ginger minions. This episode marks the first time Kevin's voice is heard, albeit as only a brief scream.

Kevin again makes guest appearances in "Bike Parade" and "South ParQ Vaccination Special", being seen alongside Mephesto in both episodes.

Chef Aid: The South Park Album[]

Kevin's story is told in the song "Mephesto and Kevin" by Primus from Chef Aid: The South Park Album. He was apparently a failed attempt to create a perfect pop singer, a test tube baby created from Michael Jackson's sperm and the egg of an unspecified, musically talented female donor, brought to term inside the womb of a llama. It was also revealed that Kevin is legally Dr. Mephesto's son.


Kevin appears to be some sort of warped clone of Mephesto. He has strands of black hair and facial hair on his face and an unusually large mouth. He wears a yellow flowered Hawaiian button-down shirt and brown pants. In "201", Kevin's character was redesigned alongside Mephesto's character, having a more detailed and polished appearance to suit the show's current animation.

To see images of Kevin Mephesto, visit Kevin Mephesto/Gallery.



  • South Park: Post Covid - Kevin makes a cameo in the film, where he is seen in his future self as a background character, along with several other characters.