CREATE TABLE table_204_494 (id DECIMAL, "episode #" TEXT, "original air date  ( uk ) " TEXT, "episode title" TEXT, "guest cast" TEXT, "dvd # 1" DECIMAL)

what is the total amount of guests in episode 1-01 ?
SELECT "guest cast" FROM table_204_494 WHERE "episode #" = '1-01'
SELECT "guest cast" FROM "table_204_494" WHERE "episode #" = '1-01'