Don't let her title fool you. Donna (Sarah Rafferty) may be Harvey's executive assistant, but she's one of the most formidable minds at Pearson Hardman. With her razor sharp wit and knowledge of all the comings and goings at the firm, Donna is admired and feared by both associates and partners alike, and she's not afraid to wield that power when it suits her needs.
Having been with Harvey since his days in the D.A.'s office, Donna keeps the fine machinery of his life well oiled and is privy to all his secrets - including the truth about Mike. But even though she likes to keep the young associate on his toes, Donna is a trusted ally who Mike can turn to when the going truly gets rough. And at a firm like Pearson Hardman, that happens a lot.