| Abra Cadaver |   |
| Accidental Friends | |
| Across the Plains: The Journey of the Palace Wagon Family | |
| Act Your Age (manuscript) | |
| Adam's Apple | |
| Adrift in New York (or Her First False Step) | |
| Adventures of Doctor Dolittle (mus) | |
| Aesop's Fable-ous Christmas Tree | |
| After the Beep | |
| After the Beep: Seven Short Plays | |
| Afternoon of the Elves | |
| Agatha Raisin and the Quiche of Death | |
| Airport 1904 (m) | |
| Alabama Rain | |
| Aladdin | |
| Aladdin | |
| Aladdin and the Wonderful Lamp | |
| Alex | |
| Alexander, Who's Not Not Not Not Not Not Going to Move | |
| Ali Baba and the Magic Cave | |
| Alice and Margo | |
| Alice In Wonderland | |
| Alice in Wonderland (Chorpenning Version) | |
| Alice in Wonderland (Glennon Version) | |
| Alice in Wonderland (Martens Version) | |
| Alice's Blue Gown | |
| Alicia in Wonder Tierra (or I Can't Eat Goat Head) (1 act | |
| Alicia in Wonder Tierra (or I Can't Eat Goat Head) (full length) | |
| Alien Equation | |
| Alive and Kicking | |
| All I Really Need to Know I Learned in Kindergarten | |
| All I Realy Need to Know I Learned By Being in a Bad Play | |
| All in Disguise | |
| All of Us | |
| All Out | |
| All Out (30-minute manuscript version) | |
| All the World's a Stage | |
| All Through the House | |
| Aloysius and the Ghost of Uncle Harold | |
| Amelia Lives | |
| American Beauty | |
| American Beauty (Musical) | |
| American Dead | |
| American Gothic | |
| Among the Thugs | |
| An Open and Shut Case | |
| And Flights of Angels | |
| And Then They Came for Me: Remembering the World of Anne Frank | |
| And Then They Came for Me: Remembering the World of Anne Frank (German translation) | |
| Androcles and the Lion | |
| Androcles and the Lion | |
| Angel in the Night | |
| Angels and All Children (manuscript) | |
| Animal Farm | |
| Anne Frank and Me | |
| Anne of Avonlea | |
| Anne of Green Gables (musical) | |
| Anne of Green Gables (straight) | |
| Answers From the Center of the Universe About Things Unknown | |
| Antigone (Mann version) | |
| Any Body Home? | |
| Any Famous Last Words? | |
| Anything to Declare? | |
| Archer and the Princess, The | |
| Archipelago | |
| Are We There Yet? | |
| Around the World in 80 Days | |
| Arrivals | |
| Arthur's Stone, Merlin's Fire | |
| As You Like It | |
| Ashes, Ashes, All Fall Down | |
| Asylum | |
| At the Frog Fountain | |
| Atalanta | |
| Atypical Boy | |
| Augusta | |
| Aunt Leaf | |
| Auschwitz Lullaby | |
| Auschwitz Lullaby | |
| The Abdication | |
| The Actress | |
| The Adventures of Beatrix Potter and Her Friends | |
| The Adventures of Harlequin | |
| The Adventures of Peter Rabbit and His Friends | |
| The Adventures of Peter Rabbit and His Friends (touring manuscript) | |
| The Adventures of Tom Sawyer | |
| The Agreement | |
| The Arabian Nights | |
| The Audition | |
