Zachary David Alexander "Zac" Efron (born October 18, 1987) is an American actor and singer. He began acting professionally in the early 2000s and became known with his lead roles in the Disney Channel Original Movie High School Musical, the WB series Summerland, and the 2007 film version of the Broadway musical Hairspray. Efron has since starred in the films 17 Again, Me and Orson Welles, Charlie St. Cloud, New Year's Eve, and The Lucky One.

In 2007, Rolling Stone declared him the "poster boy for tweenyboppers" and featured him in their late August 2007 issue.

Efron was born in San Luis Obispo, California, and later moved to Arroyo Grande, California. His father, David Efron, is an electrical engineer at a power station, and his mother, Starla Baskett, is a former secretary who worked at the same power plant. Efron has a younger brother, Dylan, and had, as he has described it, a "normal childhood" in a middle class family. He is an agnostic, having never been religious. His surname, "Efron", means "lark" in Hebrew (his paternal grandfather was Jewish).

Robert De Niro (pronounced /dəˈnɪəroʊ/; born August 17, 1943) is an American actor, director and producer. His first major film roles were in Bang the Drum Slowly and Mean Streets, both in 1973. In 1974, he played the young Vito Corleone in The Godfather Part II, a role that won him the Academy Award for Best Supporting Actor.

His critically acclaimed, longtime collaborations with Martin Scorsese began with 1973's Mean Streets, and earned De Niro an Academy Award for Best Actor for his portrayal of Jake LaMotta in the 1980 film Raging Bull. He was also nominated for an Academy Award for his roles in Scorsese's Taxi Driver (1976) and Cape Fear (1991). In addition, he received nominations for his acting in Michael Cimino's The Deer Hunter (1978) and Penny Marshall's Awakenings (1990). Also in 1990, his portrayal as Jimmy Conway in Martin Scorsese's Goodfellas earned him a BAFTA nomination.

He has earned four nominations for the Golden Globe Award for Best Actor – Motion Picture Musical or Comedy: New York, New York (1977), Midnight Run (1988), Analyze This (1999) and Meet the Parents (2000). De Niro directed A Bronx Tale (1993) and The Good Shepherd (2006). He has received accolades for his esteemed career, including the AFI Life Achievement Award and the Golden Globe Cecil B. DeMille Award.