Question: Which main cast seasons were portrayed by Joe Jonas?
SQL: SELECT "Main cast seasons" FROM "2-12441518-1" WHERE "Portrayed by" = 'Joe Jonas';

Question: How many episodes were portrayed by nick jonas?
SQL: SELECT COUNT("# of episodes") FROM "2-12441518-1" WHERE "Portrayed by" = 'nick jonas';

Question: How many episodes had the character of Nick Lucas?
SQL: SELECT SUM("# of episodes") FROM "2-12441518-1" WHERE "Character" = 'Nick Lucas';

Question: What character is portrayed by Joe Jonas?
SQL: SELECT "Character" FROM "2-12441518-1" WHERE "Portrayed by" = 'Joe Jonas';