Aside from Meteor Garden, Chou has appeared in Taiwanese series such as Poor Prince and Love Storm, considered to be very "typical" idol dramas. However, with the 2004 television series Mars, Zhou took on a more complex role as a set of twins who have mental illnesses. Zhou considers a turning point in his career. In many interviews, Zhou has pinpointed this as the moment where his interest in acting was truly piqued. Since then, he has taken on increasingly multi-facted roles, such as an ambitious but lonely businessman in Silence, a cranky perfectionist in Sweet Relationship, and an awkward but passionate novelist in Wish to See You Again.