 By this time, Susan had been dead for several years but the discovery of the letter prompted Ken to contact Lawrence and on meeting him, it became obvious to Ken that Lawrence was his son.Ken began to bond with his son but after discovering that Lawrence was homophobic and disapproved of his son, James, being homosexual, Ken cut all contact with him, angry that he would disown his own son for being different.Ivan Cheveski played by actor Ernst Walder until 1967.