Along with Nicole Burdette, Frank Pugliese and Kenneth Lonergan, he is a member of a writer's group for dramatic and fiction authors.
Along with eleven other theatre artists, including his brother Pippin Parker, Toby co-founded Naked Angels Theater Company in New York City in 1986.
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He has three brothers and four sisters, most of whom also have careers in the entertainment industry, including siblings Sarah Jessica Parker and Pippin Parker.
Charlie Parker | Sarah Jessica Parker | Evan Parker | Dorothy Parker | William Parker | Parker | Sean Parker | Parker Posey | William Parker (musician) | Graham Parker | Maceo Parker | Robert M. Parker, Jr. | Quanah Parker | Matthew Parker | Kathleen Parker | Fess Parker | Theodore Parker | Mary-Louise Parker | Foxhall A. Parker | Trey Parker | Stewart Parker | Parker Lewis Can't Lose | Alton B. Parker | Tony Parker | Parker–Hulme murder case | Parker Hannifin | Parker Brothers | Parker, Arizona | Hubert Parker, Baron Parker of Waddington | Ellis Parker Butler |