Acting

Ewan McGregor has played a heroin addict in Trainspotting, a young Obi-Wan Kenobi in three Star Wars films, and a poet in Moulin Rouge. In his latest film, Roman Polanski's Ghost Writer, McGregor plays an unnamed writer uncovering a political scandal. He recounts his favorite acting roles — and how he prepared for them.

Comedian Aziz Ansari has appeared on HBO's Flight of the Conchords, ABC's Scrubs and MTV's Human Giant. Nowadays he stars opposite Amy Poehler on NBC's workplace comedy Parks and Recreation.

Actor Jason Segel stars as an obnoxious best man in the new "bromantic" comedy I Love You Man. Segel also wrote and starred in Forgetting Sarah Marshall.

Legendary Chicago broadcaster Studs Terkel dedicated his life to capturing the stories of ordinary Americans. He died Oct. 31 at the age of 96; Fresh Air remembers him with a 1985 interview.

Oscar Award-winning actor Paul Newman died on Sept. 26 of complications from lung cancer. In this 2003 interview, the star of Butch Cassidy and the Sundance Kid and Cool Hand Luke discusses his early work — both as an actor and as a salesman.

Once known as the awkward kid on the cult TV hit Arrested Development, he's become a bona fide movie star with roles in the hit comedies Juno and Superbad. Next up for him: Nick and Norah's Infinite Playlist, another music-fueled teen love story.

In his latest movie, Traitor, Don Cheadle plays a CIA operative who goes undercover to work with a terrorist group — but then becomes a suspected terrorist himself.

Twitchy undertaker, cubicle fiend, sassy convenience-store clerk — Rainn Wilson has long gravitated toward eccentric characters. But is The Office actor attempting the leap to sex symbol through his titular role in The Rocker? Given the hair-metal coif and the still-goofy humor, probably not.

Before Boogie Nights, before Far From Heaven, before Short Cuts, she appeared as identical half-sisters — one of them evil — on the soap opera As the World Turns. She won a Daytime Emmy in 1988; for her film work, she's earned four Oscar nominations.

Oscar-winning actress stepped behind the camera to direct the new dramedy Then She Found Me. She helped adapt the script as well, from the novel by Elinor Lipman. And Hunt stars in the film alongside Bette Midler — who plays her birth mother.

On TV's Rescue Me, the comic, actor and writer Denis Leary plays a highly strung, highly macho fireman Tommy Gavin, who deals with raging fires and his own raging male ego. Season 4 of Rescue Me starts next week on the FX network.

Leary, who's worked in films including The Thomas Crown Affair and The Ref, sidelines as a singer, too; his comedy CD No Cure for Cancer spawned the provocatively titled hit single "Asshole."

Shes up for an academy award for her portrayal of the mother of a drug addict who is also an addict herself in the film –Requiem for a Dream.— This is her 5th nomination and could be her second win. She won the Academy Award for the 1974 film –Alice Doesnt Live Here Anymore.— Burstyns other films include –The Last Picture Show,— –The Exorcist,— and –Same Time, Next Year— (she starred in the Broadway version too and won a Tony).

Actor Mark Wahlberg is an Academy Award nominee for best supporting actor for his role as a police sergeant in the film The Departed. After a number of smaller film roles, Wahlberg became known for his role as a porn star in Boogie Nights. Wahlberg's other films include The Perfect Storm, Three Kings, The Italian Job, and Invincible.

Ricky Gervais appears in the new film Night at the Museum, in which insects come to life after a spell is cast at The Museum of Natural History. Gervais is the creator and star of the British TV comedy series The Office, which has been adapted into a hit show starring Steve Carrell. He's won an Emmy, a Golden Globe and three BAFTA Awards. Gervais also writes the Flanimals series of children's books.

Comedian and actor Will Ferrell talks about his new film Stranger Than Fiction. Ferrell plays an accountant who finds that his life has a voiceover that only he can hear. It turns out he's the subject of a novel, and that the writer plans to kill him. Ferrell became famous as a cast member on Saturday Night Live from 1995 to 2002, and has gone on to star in movies such as Old School, Elf and Talladega Nights: The Ballad of Ricky Bobby.