Hugh Bonneville of "Downton Abbey" fame will be making his "Sofia the First" debut on October 12.
The animated Disney Junior series will feature the actor otherwise known as Lord Grantham in a four-episode arc of "Sofia the First: The Secret Library," premiering on Monday at 9 a.m. ET/PT.
In the episodes, Sofia's Aunt Tilly gives her young niece a special gift that will unlock a magical world, in which Sofia becomes the story keeper of magical books that have no endings.
In our exclusive clip from Disney Junior, Bonneville narrates a story about a flying horse who lives with a royal family but yearns to be wild.
Bonneville (in an exclusive image below), however, won't be the only starry name in the episodes. Bonnie Hunt ("Cars") and Eric Stonestreet ("Modern Family") will reprise their roles as Aunt Tilly and Sofia's horse Minimus, respectively. Cary Elwes ("The Princess Bride") will also lend his voice as the not-so-nice Prince Roderick.