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Marshall had a pretty desultory acting career post-Twin Peaks, beyond a role in A Few Good Men in 1992. He battled ill health for much of the noughties, eventually having his colon removed, thanks to a bowel disease which he claimed was a reaction to taking the acne drug Accutane. He sued the manufacturers for $11m in damages, but lost the case. His acting career over, he has now reinvented himself as a singer-songwriter.