She is voiced and motion-captured by Kaitlyn Dever.
Cassie was born in late 2017 or early 2018, sometime after the events of Uncharted 4: A Thief's End, and she is an only child. Due to only having an appearance in the Epilogue, not much is known about Cassie except that she has inherited her parents' love for treasure hunting, history, and archaeology, often accompanying them on their expeditions. She is presumably between 11–13 years old as a teenager.
A month before a trip to India, the Drake family appears to be going on a boat ride. Cassie finds her father's keys to his secret cabinet, and finds his past items (his journal, holster, the St. Dismas Cross, etc.). Cassie finds and reads through her paternal grandmother's journal on Captain Henry Avery, and finds two pictures of her father and paternal uncle in adolescence, and a picture of her parents with Victor Sullivan with the treasure of El Dorado.
Cassie is a teenage girl with a petite stature. Her appearance shares many similarities with her mother, with them both having dirty blonde hair, fair skin, and hazel-green eyes. However, her mannerisms (including her cursing) are reminiscent of her father. A unique trait is her large, black framed glasses and her necklace. The design on Cassie's shirt resembles an illustration of the Cintamani Stone seen in a book during Chapter 2 of Among Thieves. She can also read Latin and is an accomplished scuba diver.
Posters in her room imply that Cassie enjoys rock climbing, surfing, photography, and video games. She has a copy of Crash Bandicoot, which is implied to be Elena's as the high score is the same as it was in Chapter 4. A guitar is also shown in the corner of her bedroom, as well as a guitar case.
Behind the scenes
Originally, Cassie was going to be a male character. When game director Neil Druckmann introduced the character to the concept artist at Naughty Dog, she simply asked him "What if it was a girl?", which prompted the team to change Cassie's gender as that wouldn't affect or change anything in the story.
- Uncharted 4 Director Says They Had To Ask One 'Sexist Focus Tester' To Leave | Kotaku Druckmann: "When I’m introducing and describing a new character to our lead character concept artist, constantly she will ask, “What if it was a girl?” And I’m like, Oh, I didn’t think about that. Let me think, does that affect or change anything? No? Cool, that’s different. Yeah, let’s do it."