Star vs. the Forces of Evil: The Battle for Mewni The TV movie follows Star as she returns to her home dimension of Mewni where she discovers that magic is disappearing throughout the kingdom. Star must dig deep and challenge archnemesis Ludo in an effort to save her family and kingdom. Details Casts Title Star vs. the Forces of Evil: The Battle for Mewni Release Date 2017-07-15 Runtime 01 Hours 28 Minutes Genres Animation Fantasy Family TV Movie Comedy Production Companies Unknown Production Countries Eden Sher... Star Butterfly (voice)... Adam McArthur... Marco Diaz (voice)... Esmé Bianco... Eclipsa Butterfly (voice)... Grey DeLisle... Moon Butterfly (voice)... Michael C. Hall... Toffee (voice)... Zosia Mamet... Hekapoo (voice)... Natalie Palamides... Foolduke (voice)... Amy Sedaris... Mina Loveberry (voice)... Patrick Stump... Ruberiot (voice)... Fred Tatasciore... Buff Frog (voice)... Jeffrey Tambor... Glossaryck (voice)... Alan Tudyk... Ludo/River Butterfly (voi... Nia Vardalos... Angie Diaz (voice)... Artt Butler... Rafael Diaz (voice)... Greg Ellis... Manfred (voice)... Carl Weathers... Omnitraxus Prime (voice)... Dee Bradley Baker... Rats/Lil Chauncey (voice)... Daron Nefcy... Additional voices... Kevin Michael Richardson... Rhombulus/Archduke Batwin... Scott Menville... Corncob Merchant/Mewman H... Jeff Bennett... Sir Scarsguard (voice)... Dominic Bisignano... Lizard Monster 1/2 (voice... Katie Driver... Young Moon Butterfly (voi... Keith Ferguson... Scottish Mewmen/Mewman Ma... Mark Gagliardi... Additional voices... Tress MacNeille... Staring Mewman Woman/Merc... Sonny Ashbourne Serkis... Young River Butterfly (vo... Fred Tatasciore... Staring Mewman Man (voice... Chris Tergliafera... Rasticore (voice)... Kimaya Thais... Katrina (voice)... Kari Wahlgren... Elderly Mewman Woman/Mewm... Travis Willingham... Lord Mildrew (voice)...