Marcel Ruiz is a Puerto Rican actor, known for his roles as Alex Alvarez in the series One Day at a Time and John Smith in the 2019 film Breakthrough.

Ruiz began his career acting in commercials at an early age.

[1] Since 2017, Ruiz stars in the reboot of One Day at a Time as the character Alex Alvarez on Netflix (2017-2019), Pop (2020), and CBS (2020)[2] In 2019, he starred in Breakthrough, a drama film and true story, portraying the role of John Smith.

[3][4] He loves playing sports like basketball and soccer.

Ruiz was named as one of the "10 Latinxs to Watch in 2019", by Variety magazine.