Desmond Harrington

'Elementary' Kicks Off Season 6 With a New Friend From Sherlock's Past -- Watch the Sneak Peek! (Exclusive)

'Elementary' Kicks Off Season 6 With a New Friend From Sherlock's Past -- Watch Sneak Peek! (Exclusive)

ET exclusively debuts a first look at the CBS drama's newest series regular from Monday's season six premiere.

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'Elementary' Sneak Peek: Watch Desmond Harrington Make His Debut in Season 6 Premiere (Exclusive)

'Elementary' Sneak Peek: Watch Desmond Harrington Make His Debut in Season 6 Premiere (Exclusive)

The sixth season, starring Jonny Lee Miller and Lucy Liu, kicks off Monday, April 30 at 10 p.m. ET/PT on CBS.

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