He is best remembered for creating the role of the Courier in the original Broadway production of Sherman Edwards and Peter Stone's musical 1776 in which he was critically acclaimed for his performance of the song "Momma Look Sharp".
[7] He made his Broadway debut at the Billy Rose Theatre as Rabbit Holman in the original production of Terrence McNally's 1968 musical Here's Where I Belong.
In The Frederick News-Post's review of the premiere, the paper stated: One of the most poignant moments comes when a young courier (Scott Jarvis) sings "Momma Look Sharp".
[10] Originally the musical was presented with no intermission, but later Jarvis's song "Momma Look Sharp" became the emotional climax ending to Act 1.
[13] In 1971 Jarvis starred in the original Off-Broadway musical revue Leaves of Grass, based on poems by Walt Whitman, at Theater Four on W. 55th St. His songs in the production included "There Is That in Me", "Do You Suppose", "Twenty-Eight Men", and "Dirge For Two Veterans".
[16][17] He also performed the role of Jesus in Godspell at that theatre in 1974,[18] and that same year starred in a production of the musical revue Jacques Brel is Alive and Well and Living in Paris at the Sombrero Playhouse in Phoenix, Arizona.
[24] In 1989 he portrayed Ludlow Lowell in Pal Joey at the theatre of The Claridge Hotel in Atlantic City with Clint Holmes in the title role.
[7] On television, Jarvis appeared as a guest actor in episodes of Starsky and Hutch, The Young and the Restless, and The Edge of Night.