The first use of the term "psychology" can be traced back to the late 16th century. While it wasn't considered to be the study of the human mind, it was called the "science of the soul."
All of Brianna's charcoal sketches are hand drawn by the Outlander art department.
"I'll have a whole man or none at all." This conversation between Marsali and Murtagh was inspired by a scene from the book Dragonfly in Amber where Jamie's sister Jenny asks Jamie to take her husband Ian with him to fight in the Rising of '45.
Lizzie is played by Caitlin O'Ryan, and Outlander is her professional television debut.
Gerald Forbes is played by Billy Boyd, best known for his role as Pippin in The Lord of the Rings.