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Tommy is the third child and firstborn son of Nora Holden Walker and the late William Walker. Like his father and his sister Kitty, Tommy sees himself as conservative, though this is rarely touched on. Tommy is married to Julia Walker. Tommy spent years working under his father and his Uncle Saul at Ojai Foods, hoping he would be able to take over the business someday. After his sister Sarah decided to leave her own high-stakes corporate career behind and work for her father's company (on a reduced schedule) to spend more time with her husband and kids, William gave her more and more power in the company, making Tommy feel less important.

(wikipedia.org)