Mrs. Tanner was a patient at Sacred Heart Hospital.
Mrs. Tanner was a charismatic old lady who taught J.D. several life lessons. She could've gone through dialysis to prolong her life, but she decided she had lived a long and eventful life and wanted to die peacefully. ("My Old Lady")
She lived in Kyoto for five years and spoke Japanese, which she explained in the language to an uncomprehending J.D.("My Old Lady")
- Mrs. Tanner appears in J.D.'s last fantasy at Sacred Heart, asking him if he has taken his picnic yet. ("My Finale")