Guest Stars Lena Headey voices Amelia Hughes Jeremy Crutchley voices Glad-One Kari Wahlgren voices Disco Girlfriend Kari Wahlgren voices Punk Girlfriend Kari Wahlgren voices Earthy Girlfriend Nick Kishiyama voices Ryan's Brother #2 Nick Kishiyama voices Young Ryan Keith Ferguson voices Horace Stephen Park voices Min-Gi's Father Naia Yoshida voices Ryan's Sister Izaac Wang voices Ryan's Brother #1 Izaac Wang voices Young Min-Gi Johnny Young voices Teen Min-Gi Niki Hyun Yang voices Announcer Niki Hyun Yang voices Min-Gi's Mother Sekai Murashige voices Teen Ryan Tohoru Masamune voices Ryan's Father