|Portrayed By||Jefferson Mays|
|Occupation(s)||Agent with the Office of Professional Responsibility|
|First Appearance||"Walter Taffet"|
|Last Seen||"One Day in the Life of Anton Baklanov"|
|Images of Walter Taffet|
Among those suspected is Martha herself. She and Taffet encounter each other in an elevator and when she questions Clark he does not know who Taffet is but instructs her on how to respond to Taffet's questions. She passes his questioning but believes that her husband may not be who he says he is.