Camara DaCosta Johnson, professionally known as Yaya Alafia (formerly Yaya DaCosta), is an American actress and model. She's best known for her starring role as April Sexton on NBC's Chicago Med, as Andrea Vaughn in Our Kind of People, and as Whitney Houston in the TV movie Whitney.
She was the runner-up in Cycle 3 of America's Next Top Model. She eventually went to star as Cassandra in ABC's daytime soap All My Children, as Nico Slater in ABC's comedy-drama Ugly Betty, and as April Sexton on NBC's medical drama Chicago Med.
She's also appeared in films including The Kids Are All Right, In Time, The Messenger, The Butler, And So It Goes, and The Nice Guys.

Not My Family: The Monique Smith Story
Monique Smith
2025

The Lincoln Lawyer
Andrea Freemann · (19 episodes)
2022

Our Kind of People
Angela Vaughn · (12 episodes)
2021

Turning the Tables with Robin Roberts
Self · (1 episode)
2021

Bolden
Nora Bolden
2019

Peel
Sarah
2019

Faith Under Fire: The Antoinette Tuff Story
Kendra
2018

The Nice Guys
Tally
2016

Chicago Med
April Sexton · (122 episodes)
2015

Whitney
Whitney Houston
2015

And So It Goes
Kennedy
2014

Chicago P.D.
April Sexton · (2 episodes)
2014

Mother of George
Sade Bakare
2013

The Butler
Carol Hammie
2013

Big Words
Annie
2013

Chicago Fire
April Sexton · (12 episodes)
2012

In Time
Greta
2011

Unforgettable
Molly McGinty · (1 episode)
2011

Whole Lotta Sole
Sophie
2011

Body of Proof
Holly Bennett · (1 episode)
2011

TRON: Legacy
Siren #3
2010

The Kids Are All Right
Tanya
2010

The Messenger
Monica Washington
2009

Mercy
Brooke Sullivan · (1 episode)
2009

Racing for Time
Vanessa
2008

Honeydripper
China Doll
2007

Army Wives
Specialist Amber Stiles · (1 episode)
2007

Take the Lead
LaRhette
2006
Weekends at Bellevue
Vanessa

Ugly Betty
Nico Slater · (6 episodes)
2006

House
Anita · (2 episodes)
2004

Eve
Ms. Jenkins · (1 episode)
2003

America's Next Top Model
Contestant · (12 episodes)
2003

Law & Order: Special Victims Unit
Audrina · (1 episode)
1999

The Simpsons
Princess Kemi (voice) · (1 episode)
1989