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Chase's life has been gradually illustrated throughout the series. He appears to be from a wealthy Australian family (of probably Czech descent; in the episode "Cursed," House speculated that his father's accent is "Czech with about 30 years Aussie," which the father confirms; Jesse Spencer is Australian himself), and has also had a rough relationship with his father, Rowan, a famous doctor in his own right, as Chase talks to House about trying to mend the gap with his father many times, but finding his father simply didn't care. Eventually, Rowan Chase is revealed to have left the family when Robert was a teenager, which gave his son no other option but to care alone for his alcoholic mother until her death, a good five years later which was approximately ten years before "Damned If You Do". In "Cursed," Rowan visits the hospital claiming he is in town for a conference, but close observation of his behavior allows House to deduce that there is no conference and in reality, Rowan is dying from terminal lung cancer. Rowan was at the hospital to visit Dr. James Wilson, a cancer specialist. Initially, Robert is intensely frustrated with his father's presence, but offers to buy his father a drink at the end of the episode. Rowan declines, and leaves without ever revealing to Robert of his condition. In the Season Two episode "The Mistake," viewers learns that Chase's father died about two months after the visit in "Cursed." Chase has also hinted in the second season that he is now no longer well-off, since he had started working in NICU while taking his paid vacation time in House's department, receiving twice his usual salary. Upon learning that Chase has been putting in extra hours, House speculates that Chase must have been cut out of his inheritance after his father's death. Chase neither confirms nor denies this hypothesis. However, in the Season Three episode "Finding Judas," he admits that his father left him out of his will, and that he harbors ill will towards Rowan once more. In "Damned If You Do", Chase reveals to a patient that he attended a seminary, quoting 1 Peter 1:7. This aspect of his life was shown again in the episode "Forever," when he said a prayer for the soul of a baby who died under his care. It has also been alluded to that he has been into BDSM in the past, although he says that his familiarity with the scene was only because he was dating a banker who liked to be burned. (cf. "Love Hurts") (wikipedia.org)