Amanda Johns joined Castle at the start of season 7. She started her TV career as a segment producer on travel and reality shows (Stranded With Cash Peters, America's Best Beaches, Peter Perfect), before joining Boston Legal as a writer's assistant for two seasons, writing her first episode in 2008. She subsequently wrote for another legal series, Harry's Law, and medical drama Monday Mornings. Her first Castle episode was co-written with Terence Paul Winter. She left the show at the end of season 7.
Primary Writer on
- I, Witness (7x13)
- Monday Mornings – writer of 5 episodes
- Harry's Law - writer's assistant on 2 episodes, writer of 4 episodes
- Boston Legal - Writer's assistant on 32 episodes, writer of one episode