克里斯·凡·塔肯

Chris van Tulleken

饰：自己

亚历山大·凡·塔肯

Xand van Tulleken

饰：自己

Susan Jebb

Susan Jebb

饰：Self - Oxford University,(as Professor Susan Jebb)

Robert Lustig

饰：Self - University of California, San Francisco,(as Dr Robert Lustig)

Amanda Ursell

Amanda Ursell

饰：Self