Alina Tomnikov was born on 24 June 1988 in Kerava, Finland to a Russian father and Finnish mother.

[3] In 2017, Tomnikov made her Russian acting debut, starring as Princess Wilhelmina of Hesse-Darmstadt / Her Highness Natalya Alexeyevna in historical television series Ekaterina.

[4] She joined the cast of the ninth season of the sketch comedy television show Putous in 2018.

[5] In 2018, she starred in the titular role in Yle's drama series Donna, portraying a blind woman seeking love after being left by her husband.

[6] In 2023, Tomnikov starred in her debut leading role in Pamela Tola's drama film The Worst Idea Ever.