Novel variants of clade 2.3.4 highly pathogenic avian influenza ... by Gu, Min; Zhao, Guo; Zhao, Kunkun; Zhong, Lei; Huang, Junqing; Wan, Hongquan; Wang, Xiaoquan; Liu, We / Emerging Infectious Diseases.
Sometimes a dynamic character is called a developing character. Flat Character A character who reveals only one, maybe two, personality traits in a story or novel, and the trait(s) do not change.
In literature, a protagonist and antagonist are archetypal characters that serve as focal points to portray two sides of a conflict. Archetypes are a symbol or motif of a typical example of a thing or person. Differences between the two characters are defined by the roles the two play within a story. Though these roles are often played by two human characters, they can also be represented by elements of nature or two sides of the same character.