Among the movies in which Alan Tudyk is a voice actor, how many of them were released after 2012?
released after 2012 refers to (release_date, instr(release_date, '-') + 5) > 12;
SELECT COUNT(T2.movie) FROM characters AS T1 INNER JOIN `voice-actors` AS T2 ON T1.movie_title = T2.movie WHERE T2.`voice-actor` = 'Alan Tudyk' AND SUBSTR(release_date, INSTR(release_date, '-') + 5) > 12