Jack Frost is the main protagonist in the animated film Rise of the Guardians, as well as a supernatural being much like the Guardians.

Based on the Guardians of Childhood series of picture books by illustrator William Josie, the film tells the story of Father Christmas North (Alec Baldwin), who joins forces with the Easter Bonnie Bunny (Hugh Jackman), the Tooth Fairy (Ella Fischer), the Sandman, the God of Sleep, and the Ice Prince, who possesses unknown superpowers, to form a "League of Guardians" to fight against an attack by the Evil Nightmare (Jude Law), in an effort to protect the beliefs, hopes, and dreams of the children of the world.

The character LORA is Czech Frost, which literally translates to Jack Frost, who represents the frosty season before the onset of winter and will paint ice flowers on the windows of every home. His appearance comes from the film 《Rise of the Guardians》.

影片根据插画家威廉·乔西创作的《童年的守护者》系列绘本改编，讲述的是为了保护广大儿童的信仰、希望与梦想，圣诞老人诺斯（亚历克·鲍德温）联合复活节邦尼兔（休·杰克曼）、牙仙（艾拉·菲舍尔）、睡神沙人以及冰王子杰克弗罗斯特（克里斯·派恩），组建起“守护者联盟”，共同对抗邪恶梦魇（裘德·洛）的攻击。

这个角色LORA就是捷克弗罗斯特，字面上翻译就是杰克霜冻，他代表着冬季来临前的霜降节气，会为每一个家庭的窗户上绘画冰花。其外形来自于电影。