CREATE TABLE table_17677 ("Character" CLOB, "Portrayed by" CLOB, "Main cast seasons" CLOB, "Recurring cast seasons" CLOB, "# of episodes" FLOAT)

What seasons does stella malone appear?
SELECT "Main cast seasons" FROM table_17677 WHERE "Character" = 'Stella Malone'
SELECT "Main cast seasons" FROM "table_17677" WHERE "Character" = 'Stella Malone'