Occasional appearances on "Late Show with David Letterman" (1993) on CBS-TV. His most memorable performances were with Tony Randall, who accompanied him pretending to have had a taxi breakdown and therefore needing an emergency rehearsal hall. Mandy then brings down the house with "Swanee", "Mammy", etc.

Lost his father to cancer.

Mandy's mother is Doralee Patinkin Rubin, a cookbook author, who is to have her own cooking show on the Food Network.

Has sons, Isaac and Gideon

Fans of The Princess Bride (1987) frequently attend his live performances just to hear him utter the famous line, "My name is Inigo Montoya. You killed my father. Prepare to die." He frequently includes it towards the end of the show.

Says that of all the roles he's played in his career, "Inigo Montoya", from The Princess Bride (1987) is his absolute favourite.

1970 graduate of Kenwood High School, Chicago

Attended the University of Kansas for two years before being "discovered."

Mandy does concerts for the gun control advocacy group, Pax, and for Doctors Without Borders, a group that provides medical relief in violence-torn areas such as Darfur, Lebanon, and many other developing countries.

Was not asked to reprise his Tony award winning role of 'Che' in the movie version of Evita (1996).

Briefly studied acting at New York's Juilliard School of Drama, but dropped out to pursue work.

Before he and Adam Arkin starred as doctors on the television show, "Chicago Hope" (1994), they both played doctors in the movie, The Doctor (1991).

Had right cornea replaced due to degenerative eye disease [May 1997]

Had left cornea replaced due to degenerative eye disease (keratoconus) [November 1998]

Began singing in the temple choir at age 9.

Won Broadway's 1980 Tony Award as Best Actor (Featured Role - Musical) for playing Ernesto 'Che' Guevara in "Evita." He was also nominated twice as Best Actor (Musical): in 1984 for "Sunday in the Park with George," a role he recreated in the television version with the same title, _Sunday in the Park with George (1986) (TV)', and in 2000 for "The Wild Party."

Did an interview for a 1987 The Princess Bride (1987) featurette pretending to have worse English than the character he was playing (a Spaniard). In reality, he's American, born and bred.

Acted in very first commercial for Kellogg's Frosted Mini-Wheats; commercial filmed in Chicago's Loop.

Portrayed a spirit from the '50s in a 7-Up ad for his first TV commercial in 1970. Also played the lead in the very first TV commercial for Kellogg's Frosted Mini-Wheats.

He is a lover/collector of Lionel model trains and he continues to enjoy playing with them to this day. He considers the concept of hanging on to such "classic" influential toys from the past very important to pass down to future generations.

In 2000 he released a CD entitled Kidults featuring childrens songs among others.