Calloway, a man with thinning hair, glasses, and a strong country accent, served during the Vietnam era, then became an energy trader at Duke Power, in North Carolina.

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His father, Ravi Pazhani, a slight man with metal-frame glasses, sat behind him.

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The doctor was a tall but stooped man in his seventies, with a gray goatee and black horn-rimmed glasses.

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Instead, the man who sat down on Letterman's couch was a disheveled character with a hobo's beard and dark glasses, mumbling incoherent answers to the host's questions.

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As she folded herself into a chair for the Talk Asia interview, the entourage settled in the background -- some blending in with the grand designs of the exhibition, others, like Carlo, a small, bald man wearing dark glasses, providing more of a contrast.

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