sentences:  In the episode "Wing", he appears as the husband of the titular character, a Chinese-New Zealand singer guest starring as herself.Lu Kim's actual identity, Dr. William Janus, appears in the episode "City Sushi".In the episode's two plotlines, Dr. Janus falsely diagnoses Butters with multiple personality disorder before being revealed to suffer from the disorder himself, while Lu Kim plots to murder his new Japanese rival Junichi Takayama.