No Mass is the third episode of season one of One Day at a Time.
When Lydia disappears after a heated argument with her daughter about religion, the smooth running of the household falls apart in her absence.
- Justina Machado as Penelope Alvarez
- Todd Grinnell as Schneider
- Isabella Gomez as Elena Alvarez
- Marcel Ruiz as Alex Alvarez
- Stephen Tobolowsky as Leslie Berkowitz
- Rita Moreno as Lydia Riera
- Ariela Barer as Carmen
- Reid Cox as Stick Girl
- Eve Sigall as Birdie
- Penelope admits she isn't sure she believes in God.
- Lydia went to church and prayed every day for years while Penelope was deployed.
- During Penelope's speech about inspiration, it is suggested that Lydia is inspired by her faith, Penelope is inspired by Serena Williams, Alex is inspired by John Cena, Elena is inspired by Sonia Sotomayor, and Carmen is inspired by death.