In "Parekoy" that was aired on January 5, 2009, Kristofer played as Ringgo. After playing young Johnny (played by Dingdong Dantes) in the remake of the 2000 South Korean drama series, "Endless Love", Kristofer became a GMA Artist Center talent with the screen name, Kristoffer Martin. In "Endless Love", he was paired with Kathryn Bernardo. Martin entered GMA Network with his former "Kung Fu Kids" co-star Joshua Dionisio. Kristofer signed an exclusive three-year contract until 2013. He appeared in the teen-oriented show "Tween Hearts" and "Munting Heredera" where he was paired with Joyce Ching. In the mid-2012, he was included as cast member of drama series on GMA Network entitled "Luna Blanca" and played the role of Joaquin "Aki" Alvarez. In 2013, he starred in two television dramas. The first drama being "Kakambal ni Eliana" where he is paired with Kim Rodriguez for the first time. Before the year ended he was cast in the drama "Kahit Nasaan Ka Man" where he is paired with Julie Anne San Jose. In 2014, he starred in "Paraiso Ko'y Ikaw" where he is again paired with Kim Rodriguez  In 2015, KrisM appeared in one episode of "Karelasyon" where he plays a mama's boy. In 2016, KrisM was featured in the record album "One Heart" that was released by GMA Records. He is always paired with Joyce Ching, his real-life ex-girlfriend, that made them dubbed as "ex-goals". Kristofer Martin is fond of mountain climbing and he climbs mountains together with other actors like Alden Richards, Rodjun Cruz, Kylie Padilla and Dianne Medina.