Gender: Male Age: 20 (29-year-old office worker before regression) Height: 183cm Birthday: February 14th Group Name: SPARK Fandom Name: Sparkler Position: Sub-vocalist Hair Color: Black Characteristics: A cold beauty. (Members once described his dream as being a "refined rogue.") Because he worked in an office before his regression, he is very efficient. He comes up with ideas for things like music videos (and they are excellent). He is currently trying to naturally phase himself out after the debut.

Gender: Male Age: 20 Height: 187cm (Tallest in the group) Birthday: November 3rd Group Name: SPARK Fandom Name: Sparkler Position: Main Dancer Hair Color: Navy Characteristics: A cold beauty. (He is said to love basketball the most among sports.)

Gender: Male Age: 18 Height: 181cm Birthday: March 30th Group Name: SPARK Fandom Name: Sparkler Position: Main Vocalist Hair Color: Light Brown Characteristics: A warm beauty, leader of SPARK.

Gender: Male Age: 18 Height: 184cm Birthday: September 22nd Group Name: SPARK Fandom Name: Sparkler Position: Main Vocalist Hair Color: Light Beige Characteristics: A cold beauty.

Gender: Male Age: 17 Height: 186cm Birthday: January 31st Group Name: SPARK Fandom Name: Sparkler Position: Main Rapper, Producer Hair Color: Light Yellow Characteristics: The youngest member (Maknae).

Gender: Male Age: 17 Height: 178cm Birthday: December 29th Group Name: SPARK Fandom Name: Sparkler Position: Main Dancer Hair Color: Light Brown Characteristics: Loves street food/snacks.