In PEOPLE's exclusive first look at the Disney+ series' second season, the 'Modern Family' alum steps into his new role of the North Pole's formidable foe, Magnus Antas JP Mangalindan is a Senior ...

Scott Calvin has been Santa Claus for the past eight years, and his loyal elves consider him the best Santa ever. But he's got problems, such as a mysterious weight loss, and then he discovers ...