Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_73873 ( "Episode #" real, "Airdate" text, "Movie Title and Year" text, "Main Cast" text, "Network TV Run Time" text )

### Question ###
Who was the cast on the 3/23/1963 episode?

### Accurate SQL ###

SELECT "Main Cast" FROM table_73873 WHERE "Airdate" = '3/23/1963'