The Girl in the Mask

Brennan and Booth investigate after Sachi, the sister of Booth's detective friend Ken from Japan, goes missing, only months after arriving in the U.S. After Sachi's decapitated head is found, Ken joins Brennan and Booth to help solve her murder.

TV-14-DLSV
Season 4 | Episode 23
Cast

Emily Deschanel

as Dr. Temperance "Bones" Brennan

David Boreanaz

as Agent Seeley Booth

Michaela Conlin

as Angela Montenegro

Eric Millegan

as Zack Addy

T.J. Thyne

as Dr. Jack Hodgins

Tamara Taylor

as Dr. Camille Saroyan