Question: Peter Murray Kapetan was an American Broadway actor, singer and dancer notable for playing numerous roles during a thirty-year career, he appeared in "Titanic", a musical with music and lyrics by who?

Context paragraphs:
Titanic (musical): Titanic is a musical with music and lyrics by Maury Yeston and a book by Peter Stone that opened on Broadway in 1997.  It won five Tony Awards including the award for Best Musical.  "Titanic" is set on the ocean liner RMS "Titanic" which sank on its maiden voyage on April 15, 1912.

John Fricker: John Fricker is a British actor best known for portraying the role of Marteetee in "Your Highness" and for playing numerous roles in the internet sketch show "CAFLTtv".  He also narrated the short film "Brenda" which won three awards at 2 Days Laughter Short Film Competition 2011, including Best Film.

Melvin L. Morse: Melvin L. Morse is an American medical doctor who specialized in Pediatric medicine.  He was voted by his peers as one of “America’s Best Doctors” in 1997-98,2001-2002 and 2005–2006.  He has published numerous scientific articles in medical journals over the course of his thirty-year career.  As the author of several books, Morse has appeared on many talk show and television programs to discuss his extensive research on near-death experiences in children.

Masaharu Satō: Masaharu Satō (佐藤 正治 , Satō Masaharu , born July 1, 1946) is a Japanese voice actor currently working for Aoni Production.  He was born in Tokyo.  Satō is best known for the roles of Buffaloman, Sunshine (Kinnikuman), Miyamoto Musashi (Yaiba), Adah (), and Dora-med III (The Doraemons).  He is also known for playing numerous roles in the Kinnikuman, Dr. Slump and Arale-chan, Fist of the North Star, and Dragon Ball series.

Fred Aldrich: Fred Aldrich (December 23, 1904 - January 25, 1979) was an American character actor of both film and television.  He would break into the film industry in 1939, appearing in two films that year in small roles: "My Son Is Guilty", and the notable, "Confessions of a Nazi Spy", which starred Edward G. Robinson and George Sanders.  In the course of his thirty-year career he would appear in over 170 films, in small and bit roles.  With the advent of television, Aldrich would work in that medium as well, making his first small screen appearance on "I Love Lucy", on which he would appear multiple times over the life of the series.

Heikki Hela: Heikki Hela (born 19 July 1964 in Aitolahti) is a Finnish entertainer, actor and musician, best remembered for his role in the early 1990s hit show "Kummeli" and his hit song "Uneton Yö", featured on his debut album, "Kaikista Kaikkein".  Since then, he has recorded three more albums ("Kaksi Maailmaa", "Lauantain Toivotut Levyt" and "se tulee läpi"), along with playing numerous roles in "Kummeli" spinoff films and other titles such as the comedy film "Kahlekuningas" ("Handcuff King").

Peter Kapetan: Peter Murray Kapetan was an American Broadway actor, singer and dancer notable for playing numerous roles during a thirty-year career.  He was notable for performing in the musical "The Wedding Singer" as a Ronald Reagan impersonator.  He appeared in "Titanic", "Sunset Boulevard", "Joseph and the Amazing Technicolor Dreamcoat", and "Got Tu Go Disco".

John Thayer (cricketer): John Borland Thayer II (April 21, 1862April 15, 1912) was an American businessman who had a thirty-year career as an executive with the Pennsylvania Railroad Company.  He was a director and second vice-president of the company when he died a week before his 50th birthday in the sinking of the RMS "Titanic", on April 15, 1912.  In his youth, Thayer was also a prominent sportsman, playing baseball and lacrosse for the University of Pennsylvania and first-class cricket for the Philadelphian cricket team.  He is the only first-class cricketer known to have died aboard "Titanic".

Dianne Walker: Dianne Walker is a tap dancer, also known as Lady Di.  Her thirty-year career spans Broadway, television, film, and international dance concerts.  Walker is the Artistic Director of TapDancin, Inc. in Boston, Massachusetts.

Crystal Monee Hall: Crystal Monee Hall is an American singer, vocal arranger, songwriter and multi-instrumentalist.  Born and raised in Richmond, Virginia, Crystal holds a master's degree in Education from the University of Virginia's Curry School of Education as well as undergraduate degrees in English and African American Studies.  She began her career with the Tony–Award winning musical, RENT, playing numerous roles in the Broadway and National Touring companies.  In 2010 Crystal independently released her debut album "River Train", garnering the attention of Grateful Dead drummer Mickey Hart.  In 2011 Crystal joined the newly reformed all-star Mickey Hart Band.  Crystal contributed songwriting and vocals to both of the band's albums "Mysterium Tremendum" (2012) and "Superorganism" (2013).

Supporting paragraphs: Peter Kapetan Titanic (musical)
Answer: Maury Yeston