Thayne Riley Jasperson is an American actor and singer who portrayed the character Samuel Seabury in Hamilton. Outside of theater he is known for being a finalist of Season 4 of So You Think You Can Dance. He has also been in High School Musical, Newsies, Matilda and Finding Neverland. His Instagram (thaynejasperson) has 88.7k followers.

Thayne is the only remaining member of the original Broadway cast. He portrays different characters each show. Recently he had appearances as Seabury, King George III and John Laurens/Phillip Hamilton.