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_25831483_1 (last_appearance VARCHAR, actor_actress VARCHAR)

### Question ###
What was the last appearance of actor/actress is pam ferris?

### Accurate SQL ###

SELECT last_appearance FROM table_25831483_1 WHERE actor_actress = "Pam Ferris"