Mr. Irvine is Malcolm’s father. He’s demanding and highly critical. Mr. Irvine and Malcolm have never had a great relationship, and Malcolm has always known that his father favors Flora, Malcolm’s older sister. Mr. Irvine has a special affection and respect for Jude: like Jude, Mr. Irvine grew up in poverty and went on to become a highly successful and wealthy lawyer. At the beginning of the novel, it’s revealed that Malcolm turned down the opportunity to found a new architecture firm with his college friends to accept a position with Ratstar, a prominent (but corporate and soulless) architecture firm, just to impress Mr. Irvine. After Malcolm dies, Mr. Irvine pulls Jude aside to talk in private, and then he begins to weep as he asks Jude if Malcolm knew that he loved him. Jude wishes that it were Malcolm—not himself—who was there to experience this moment with Mr. Irvine.