Sounds like a pseudo name.
And, since when do SS wear name badges?
http://www.trunews.com/article/hillarys-handler-is-secret-service-agent-todd-madison
“...Secret Service spokeswoman Nicole Mainor told TRUNEWS by phone Wednesday that she was not authorized to confirm that USSS agent Todd Madison is the Detail Leader for Hillary Clinton for security reasons. But, Mainor did however confirm by email that the stocky African American man pictured next to the candidate in the pictures published by Jim Hoft at The Gateway Pundit is Clinton’s USSS Detail Leader. - “
When this story broke I found a earlier pic of the guy with an identifying caption. Darned if I can now though.