90th Academy Awards: Best Actress

The nominees are:

Sally Hawkins, The Shape of Water
Role: The deaf janitor who finds love with an amphibian creature being held in a government lab and plots to break him out.

Oscar History: 1 previous nomination for Best Supporting Actress

90th Academy Awards: Best Actor

The nominees:

Timothee Chalamet, Call Me By Your Name
Role: A teenage boy who falls in love with the male student of his professor father.

Oscar History: First nomination

90th Academy Awards: Best Supporting Actor

The nominees are:

Willem Dafoe, The Florida Project
Role: The manager of a cheap motel which is home to several impoverished Orlando residents.

Oscar History: 2 previous nominations for Best Supporting Actor

90th Academy Awards: Best Supporting Actress

The nominees are:

Mary J. Blige, Mudbound
Role: The matriarch of a family of tenant farmers in 1940's Mississippi.

Oscar History: Also nominated for Best Original Song

90th Academy Awards: Best Original Screenplay

The nominees are:

Guillermo del Toro & Vanessa Taylor, The Shape of Water
Oscar History: First nomination for Taylor. 1 previous nomination for Best Original Screenplay for del Toro, who is also nominated for Best Director and Best Picture.