CREATE TABLE "notable_villains" (
  "character" text,
  "portrayed_by" text,
  "crime" text,
  "first_appearance" text,
  "last_appearance" text
);

Question: What is the name of the first appearance when Chad Williams is a portrayal?
SQL: SELECT "first_appearance" FROM "notable_villains" WHERE "portrayed_by"='chad williams';

Question: Which character is portrayed by Elias Koteas?
SQL: SELECT "character" FROM "notable_villains" WHERE "portrayed_by"='elias koteas';