Kiersey Nicole Clemons is an American actress. She is known for her role in the 2015 comedy-drama film Dope, playing Cassandra "Diggy" Andrews. Subsequently, she went on to co-star in Neighbors 2: Sorority Rising (2016), Flatliners (2017), Hearts Beat Loud (2018), and played Iris West in both Zack Snyder's Justice League (2021) and The Flash (2023).

Dope is a 2015 American coming-of-age comedy-drama film written and directed by Rick Famuyiwa and produced by Forest Whitaker and Nina Yang Bongiovi. It stars Shameik Moore, Tony Revolori, Kiersey Clemons, Kimberly Elise, Chanel Iman, Tyga, Blake Anderson, Zoë Kravitz, ASAP Rocky and Vince Staples. The film was also executive produced by Pharrell Williams and co-executive produced by Sean Combs.