| Zack Kelvin | |
| Gender | Male |
| First appearance | Riddle School (2006) |
| Latest appearance | Riddle Transfer 2 (2016) |
| Favorite Thing | Anything that isn’t cold |
| Least Favorite Thing | Freezing into ice |
- "...I'm so cold... ..."
- ―Zack Kelvin
Zack Kelvin is one of Phil Eggtree's classmates and one of the main characters of the Riddle School series. His last name, "Kelvin," is a pun on the unit of temperature and relates to how he is always freezing (and in the case of later games in the series, burning.)
History[]
Riddle School[]
In Riddle School, Zack is found in Ms. Cophey's classroom. Phil comments on how he is always cold.
Riddle School 2[]
Zack is found in Mr. O. Boe's class playing a rainbow xylophone. When Phil uses the whistle, he becomes completely incased in a layer of ice.
Riddle School 3[]
In Riddle School 3, Zack appears in Mr. Soggy's classroom.
Riddle School 4[]
In Riddle School 4, Zack is found in Mr. Munch's class, sitting next to Phil before he is killed. In the Special Features menu, it is stated that "Zack was so determined not to be cold anymore that he bought a ticket to the tropics midway into his first year of college. Right above a volcanic island, the plane ran into a bad bit of turbulence and Zack ended up crashing through the window and falling into an erupting volcano and (ironically) froze to death.”
Riddle School 5[]
In Riddle School 5, Zack appears as subject #6553. In his dream, Zack needs to be frozen by the whistle and then pushed onto the ground, causing him to shatter and die. The escape pod he takes is later abducted by Viz's ship and he is used to charge a powerful ice beam with his freezing genes, but Phil manages to aim it at Viz's ship instead, killing him. After that, Zack starts burning instead of shivering.
Riddle Transfer[]
In Riddle Transfer, Zack Kelvin appears in F3 of Zone 5.1, tied to the ceiling. His code is "12345" and, to free him from the rope, Phil needs to make him sneeze with a daisy to make the rope burn. Zack then follows him around and can be used to free the Flying Pig from his cage.
Riddle Transfer 2[]
In Riddle Transfer 2, Zack appears in Ms. Cophey's class after Quiz takes over Riddle Elementary School where his fire is used to heat the bucket of water. Zack later sees Phil go with Quiz to stop Diz and appears in the credits already as an adult, working as a waiter and serving Phil and Smiley Sundae during their date.
Trivia[]
- Zack was originally going to be set at a normal temperature in the fifth Riddle Transfer game, which was later canceled.[1]
- For a while, Zack was called "Undertale Guy" by famous youtuber DanTDM. Apparently, Dan thought Zack was Sans.
Gallery[]
References[]
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