Sean Allan Krill (born June 10, 1971) is an American actor and singer who has appeared in film and television, on Broadway, Off-Broadway, and at prestigious regional theaters across the country. Krill made his Broadway debut as Sam Carmichael in 2008 in Mamma Mia!. He originated the role of Steve Healy in the Alanis Morissette musical Jagged Little Pill for which he was nominated for the 2020 Tony Award for Best Featured Actor in a Musical, and the cast album of the critically acclaimed show was the recipient of the 2020 Grammy Award for Best Musical Theater Album.