Character Name : Narrator

Original Name : Line Hatland

Gender : Male

Character Name : Himself

Original Name : Robert Biswas-Diener

Gender : Male

Character Name : Himself

Original Name : John Cacioppo

Gender : Male

Character Name : Himself

Original Name : Ed Diener

Gender : Male

Character Name : Herself

Original Name : Sonja Lyubomirsky

Gender : Male

Character Name : Himself

Original Name : Robert Schwartz

Gender : Male

Character Name : Herself

Original Name : Ruth Veenhoven

Gender : Male

Character Name : Himself

Original Name : Joar Vittersø

Gender : Male