This study discusses the fulfillment of self-actualization of Agatha’s andSophie’s characters in The School for Good and Evil novel by Soman Chainani. The fulfillment is done by finding out the forms of ideal self and real self of thetwo characters. The theory applied in this study is self-actualization byCarl Rogers. Words in the forms of narrations and dialogues relating to the discussionof self-actualization of the two selected characters were the data in this study. Theresearch design of this study was qualitative with humanistic approach. Theresults revealed that the two characters successfully fulfilled their self- actualization. However, Agatha’s process was less problematic comparedtoSophie’s due to the different environment they lived in. Agatha’s character livedin a positive and supportive environment that allowed her to believe in herself. Onthe other hand, Sophie’s character lived in a negative and toxic environment where everyone doubted her efforts in becoming a fully functioning person. Theseresults were found through the characterizations of discursive and dramaticmethods.