In pharmacology, an inverse agonist is an agent which binds to the same receptor binding-site as an agonist for that receptor but exerts the opposite pharmacological effect.n pharmacology, an inverse agonist is an agent which binds to the same receptor binding-site as an agonist for that receptor but exerts the opposite pharmacological effect.
Audrey Grey Whitby is an American actress who had portrayed Miami H8ter Girl Tilly Thompson on the Disney Channel original series, Austin & Ally, along with appearing on several other shows, including the fellow Disney Channel show, So Random!, Dog with a Blog, and Liv & Maddie. Whitby is currently 19 years old. She has been in known movies and TV shows. Her favorite food is currently pretzels and her favorite color is blue. Her hobbies are such things as skating, bowling, writing, and drawing . She was on the Disney Channel show Sonny with a Chance spin off So Random! as a recurring character.
Dove Cameron, who plays identical twin sisters on the Disney Channel series Liv and Maddie, has been tapped to star as mean girl Amber Von Tussle, while Teen heartthrob Link Larkin will be played by Garrett Clayton, known for his roles in the Teen Beach Movie franchise.