text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  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?
  ### Answer:
  SELECT first_appearance FROM table_name_26 WHERE portrayed_by = "chad williams"