Question: Which American actor appears in both the 2001 film Punks and "The Walking Dead"?

Context paragraphs:
Hallow's Victim: Hallow's Victim is the second studio album by the American doom metal band Saint Vitus.  It was released in 1985 by SST Records.  This album was the last to feature original singer Scott Reagers until their seventh album, "Die Healing" (1995).  Reagers also appears on "The Walking Dead" EP that was released the same year.  It remained the only Saint Vitus album not to be officially released on CD until SST officially released the album on CD in combination with "The Walking Dead" in 2010.

Alycia Debnam-Carey: Alycia Jasmin Debnam-Carey (born 20 July 1993) is an Australian actress, best known for her role as Commander Lexa in The CW series "The 100" and her portrayal of Alicia Clark on the AMC series "Fear the Walking Dead" (the companion series to "The Walking Dead)."  Debnam-Carey has also starred in the 2014 films "Into the Storm" and "The Devil's Hand", and appeared in the television series "McLeod's Daughters", "Dream Life", and "Next Stop Hollywood".  In 2016, she starred in the German film "Friend Request".

List of The Walking Dead (TV series) characters: "The Walking Dead" is an American post-apocalyptic horror television series developed and executive produced by Frank Darabont.  It is based on the eponymous comic book series by Robert Kirkman.  The following is a list of characters from "The Walking Dead" television series.  Although some characters appear in both places, the continuity of the television series is not shared with the original comic book series.

Seth Gilliam: Seth Gilliam (born November 5, 1968) is an American actor.  He is best known for his portrayals of Ellis Carver on "The Wire", Clayton Hughes on "Oz", Dr. Alan Deaton on "Teen Wolf", and Father Gabriel Stokes on "The Walking Dead".

Lori Grimes: Lori Grimes is a fictional character from the comic book series "The Walking Dead" and is portrayed by Sarah Wayne Callies in the American television series of the same name in the show's first three seasons.  Created by writer Robert Kirkman and artist Tony Moore, the character made her debut in "The Walking Dead" #2 in 2003.  In both forms of media, she is the wife of protagonist Rick Grimes and mother of Carl, and serves as the emotional core of the group.  The character escaped the zombie apocalypse with Carl and Rick's partner Shane Walsh, and, believing her husband to be dead, started a relationship with Shane.

Cliff Curtis: Clifford Vivian Devon "Cliff" Curtis (born 27 July 1968) is a New Zealand actor whose film credits include "The Dark Horse" (2014), "Whale Rider" (2002), "Blow" (2001), and "Once Were Warriors" (1994).  He's also had television series roles on NBC's "Trauma" and "Body of Proof", and ABC's "Missing".  He played Travis, a lead character on the AMC horror-drama series "Fear the Walking Dead", a companion series of "The Walking Dead" from 2015 to 2017.  Ethnically Māori, his many character roles have included a range of ethnicities, such as Latin American and Arab.  Curtis is co-owner of the independent New Zealand production company Whenua Films.

Andrea (The Walking Dead): Andrea Harrison is a fictional character from the comic book series "The Walking Dead" and is portrayed by Laurie Holden in the American television series of the same name.  The character was created by writer Robert Kirkman and artist Tony Moore, and debuted in "The Walking Dead "#2 in 2003.  In both mediums, she and her younger sister are among a group of survivors near Atlanta, Georgia.

Carl Grimes: Carl Grimes is a fictional character from the comic book series "The Walking Dead" and is portrayed by Chandler Riggs in the American television series of the same name, which airs on AMC in the United States.  The character was created by writer Robert Kirkman and artist Tony Moore, and debuted in "The Walking Dead" #2 in 2003.  In both forms of media, Carl is the son of primary protagonist Rick Grimes, and his wife Lori Grimes, and is one of the longest-surviving characters and one of the few original Atlanta survivors still alive.

Chris Hardwick: Christopher Ryan Hardwick (born November 23, 1971) is an American stand-up comedian, actor, voice actor, television host, writer, producer, podcaster, and musician.  He is the chief executive officer of Nerdist Industries, the digital division of Legendary Entertainment.  He currently hosts "Talking Dead", an hourly aftershow on AMC, affiliated with the network's zombie drama series "The Walking Dead" and "Fear the Walking Dead" as well as "Talking with Chris Hardwick", a show in which Hardwick interviews prominent pop culture figures; and "The Wall", a plinko-inspired gameshow on NBC.  He was also the host of "@midnight with Chris Hardwick", a nightly comedy-game show series on Comedy Central until it ended its run on August 4th 2017.

Punks (film): Punks is a 2001 film produced by Babyface, directed by Patrik-Ian Polk and starring Rockmond Dunbar, Seth Gilliam, Renoly Santiago, Jazzmun, and Dwight Ewell.

Supporting paragraphs: Punks (film) Seth Gilliam
Answer: Seth Gilliam