Elementary, My Dear Mabel

Elementary, My Dear Mabel is the eighth episode of the second season of the animated sequel television series Back to Gravity Falls.

Plot
Dipper and Mabel decide to rehearse a play of Sherlock Holmes along with Stan, Soos and Wendy.

Cast
Jason Ritter as Dipper Pines

Kristen Schaal as Mabel Pines

Alex Hirsch as Grunkle Stan, Soos Ramirez and others

Linda Cardellini as Wendy Corduroy

J.K. Simmons as Stanford "Ford" Pines

Jessica DiCicco as Tambry

Mark Strong as Alan Waters

Jackie Buscarino as Pacifica Northwest

and more!

Trivia

 * The episode's title is a title reference to Sherlock Holmes's famous line "Elementary, my dear Watson".
 * Alan Waters is a new character who watches the play of Sherlock Holmes. His voice actor, Mark Strong, also played Lord Blackwood in the 2009 film Sherlock Holmes.
 * Pacifica says Alan Waters is a good man.
 * Tambry likes to watch a Sherlock Holmes play while texting to Wendy on her cell phone.