写一个电视剧的剧本梗概，包括你自己编写的演员角色。
Title: The Last Laugh

Synopsis: After years of struggling to make it in the comedy scene, struggling comedian Jules finally lands a spot on her dream show - "The Late Show with Jimmy Kimmel". But just as she thinks things are finally looking up, Jules receives a devastating diagnosis - she has terminal cancer and only months to live. Despite the news, Jules decides to use her time left to chase her dreams and finally make it big in comedy. With the help of her best friend and fellow comedian, Marcus, Jules embarks on a whirlwind tour across the country, performing sell-out shows and basking in the laughter of adoring crowds. But as her health deteriorates, Jules is forced to confront the reality of her situation and decide what truly matters most in life.

Characters:
- Jules (played by Aubrey Plaza): a struggling comedian who receives a terminal cancer diagnosis and decides to chase her dreams before it's too late.
- Marcus (played by Hasan Minhaj): Jules' best friend and fellow comedian who joins her on her tour and provides emotional support during her difficult time.
- Jimmy Kimmel (played by himself): the host of "The Late Show with Jimmy Kimmel" who gives Jules her big break.
- Karen (played by Sarah Silverman): a fellow comedian who becomes Jules' rival on the comedy circuit.
- Dr. Patel (played by Kumail Nanjiani): Jules' oncologist who delivers the devastating diagnosis and provides medical guidance throughout her treatment.