Dermot Mulroney Joins ‘Shameless’ in Recurring Role

Dermot Mulroney (“My Best Friend’s Wedding”) has joined season five of the Showtime comedy “Shameless” for a season-long guest role.

Mulroney will be playing Sean Pierce, an ex-bad boy and recovering addict, and Fiona’s (Emmy Rossum) new manager, spurring a relationship complicated by tension and flirtation.

Mulroney most recently appeared in John Wells’ “August: Osage County” film adaptation alongside Meryl Streep and Julia Roberts, and starred as a series regular in “Crisis.”  He has also made television appearances on “Enlightened” and “New Girl.”

Shameless” is produced by Bonanza Productions, Inc. in association with John Wells Productions and Warner Bros. Television.

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