Table: tv_episode_21
Columns: no
col
title
directed_by
written_by
patient_portrayer
original_air_date
production_code

Question: Who is the patient portrayer of the episode with the production code 3T5004?
SQL: SELECT "patient_portrayer" FROM tv_episode_21 WHERE "production_code" = '3T5004'

Question: Who directed the episode with the title "Conor McNamara, 2026"?
SQL: SELECT "directed_by" FROM tv_episode_21 WHERE "title" = '"Conor McNamara, 2026"'

Question: The episode with the no. 54, directed by Charles Haid, is written by who?
SQL: SELECT "written_by" FROM tv_episode_21 WHERE "directed_by" = 'Charles Haid' AND "no" = 54

Question: What is the original air date of the episode with the title "Monica Wilder"?
SQL: SELECT "original_air_date" FROM tv_episode_21 WHERE "title" = '"Monica Wilder"'

Question: How many are directed by episodes with the production code 3T5009?
SQL: SELECT COUNT("directed_by") FROM tv_episode_21 WHERE "production_code" = '3T5009'