Steven Yeun (born December 21, 1983) is a Korean-born American actor. Yeun is currently starring in the role of Glenn in the AMC television series The Walking Dead since 2010. Other than The Walking Dead, Yeun had a cameo in the critically acclaimed American sit-com The Big Bang Theory as Sheldon's former room mate Sebastian in 2010, an independent film and a couple of shorts. He has also completed voice work for the Crysis video game series.

The son of Je and June Yeun, Yeun was born in South Korea and raised in Troy, Michigan. His parents owned two beauty supply stores in Detroit.

Yeun received a bachelor's degree in psychology from Kalamazoo College in 2005. His interest in acting and improv came during his freshman year at Kalamazoo, when he watched the college's improv group, Monkapult. He auditioned for Monkapult, but was initially rejected before successfully joining the group during his sophomore year.

Yeun revealed to his parents that he planned to pursue an improv career in Chicago, instead of enrolling in law school or medical school. His parents, while unhappy with the decision, were supportive, according to Yeun, and gave him two years to pursue acting. He moved to Chicago in 2005, living in the city's Lincoln Square with his brother. Shortly after graduation, he joined Stir Friday Night, a sketch comedy group composed of Asian-American members.

Peter Griffin is a fictional character and protagonist of the animated comedy series Family Guy. He is voiced by cartoonist Seth MacFarlane and first appeared on television, along with the rest of the family in the 15-minute short on December 20, 1998. Peter was created and designed by MacFarlane himself. MacFarlane was asked to pitch a pilot to the Fox Broadcasting Company based on Larry and Steve, a short made by MacFarlane which featured a middle-aged character named Larry and an intellectual dog, Steve. After the pilot was given the green light, The Griffin family appeared on the episode "Death Has a Shadow".

Peter is married to Lois Pewterschmidt and is the father of Meg, Chris and Stewie; he also has a dog named Brian. He has worked at a toy factory and at Quahog's Brewery. Despite the suburban blue-collar routine of his life, he has had a number of remarkable experiences.

Peter's voice was inspired by a janitor that MacFarlane heard at his school. His appearance was a redesign of the protagonist Larry from MacFarlane's previous animated short films, The Life of Larry and Larry & Steve. The Peter Griffin character has received generally mixed to positive reviews from critics. He has appeared in several pieces of Family Guy merchandise, including toys, t-shirts and a video game, and has made crossover appearances in other shows, including The Simpsons, South Park, American Dad and the Family Guy spin-off The Cleveland Show.

Ryan John Seacrest (born December 24, 1974) is an American radio personality, television host and producer. He is known internationally as host of the top-rated primetime talent showcase American Idol. He has been nominated for an Emmy award in the "Outstanding Host for a Reality or Reality-Competition Program" category for his work on American Idol. He won a Daytime Emmy Award for co-hosting the 2005 Walt Disney World Christmas Day Parade with Regis Philbin and Kelly Ripa. As a television producer, Seacrest has won an Emmy for the ABC show Jamie Oliver’s Food Revolution. On radio, Seacrest is host of On Air with Ryan Seacrest, his market-topping #1 nationally syndicated LA morning drive-time radio show for Clear Channel’s 102.7 KIIS-FM. , as well as a nationally-syndicated Top 40 radio show. Seacrest hosted the 59th Primetime Emmy Awards on September 16, 2007. Seacrest has extensive deals with brand heavyweights Proctor & Gamble, Coca-Cola and Microsoft, and has a strategic marketing and technology alliance with Eventful, Inc.