What is the name of the first appearance when Chad Williams is a portrayal?
CREATE TABLE table_name_26 (first_appearance VARCHAR, portrayed_by VARCHAR)
SELECT first_appearance FROM table_name_26 WHERE portrayed_by = "chad williams"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_26 (first_appearance VARCHAR, portrayed_by VARCHAR) Question: What is the name of the first appearance when Chad Williams is a portrayal? [/INST] SELECT first_appearance FROM table_name_26 WHERE portrayed_by = "chad williams" </s>