- Dawson Casting: Kal Penn is Gogol/Nikhil in high school and throughout his life. Kal Penn in in his thirties and is in fact only 7 years younger than Tabu, the actress who plays Ashima, Gogol/Nikhil's mother.
- Tabu herself, who was 37 when cast as the 20 year old Ashima, though this is later justified as she continues to play Ashima as the character ages.
- Playing Gertrude: Combined with Dawson Casting with 37-year-old Tabu playing a young adult Ashima and an older woman Ashima. In fact, Tabu is only 7 years older than Kal Penn.
Trivia / The Namesake