Complex sentence: The musical opened off-Broadway at the Second Stage Theater in the Spring of 2016, though he was not in the cast as he was appearing in the Broadway musical, "Tuck Everlasting".
Split into simpler sentences: The musical opened off-Broadway at the Second Stage Theater in 2016, though he was not in the cast. He has recently appeared in the cast of the Broadway musical, "Tuck Everlasting".