Caila Marsai Martin[1] (/ˈmɑːrseɪ/ MAR-say;[2] born August 14, 2004)[3] is an American actress and producer, best known for her role as Diane Johnson on the ABC sitcom Black-ish (2014–2022).

In 2016, Martin made her film debut, playing a leading role in the Amazon Studios original film An American Girl Story – Melody 1963: Love Has to Win, set in Detroit during the Civil Rights Movement.

Martin's first film as part of the deal is StepMonster, a comedy about a teenage girl who is adjusting to life with a new stepmother.

[20] In May 2019, it was announced Martin would be producing and starring in the film adaptation of Amari and the Night Brothers for Universal Pictures.

[24][25] In April 2022, it was announced that Martin would star alongside Kelly Rowland and Omari Hardwick in the comedy film Fantasy Football.