Question: This former America football halfback guest-starred in the second season of "Chuck" as which character?

<P0-S0> "Chuck Versus the Third Dimension" is the 12th episode of the second season of "Chuck". <P0-S1>  It aired on February 2, 2009. <P0-S2>  This episode was originally aired in 3-D, as the name suggests, using the same ColorCode 3-D technology as some of the commercials in Super Bowl XLIII. <P0-S3>  When Chuck foils a plan to kill international rock star Tyler Martin (Dominic Monaghan), the agents kidnap the musician to find out who wants him dead. <P0-S4>  Meanwhile, Big Mike's old football friend Jimmy Butterman (Jerome Bettis) comes to work at the Buy More. <SEP> <P1-S0> "Chuck" is an American spy action-comedy-drama television series created by Josh Schwartz and Chris Fedak. <P1-S1>  It premiered on the terrestrial television network NBC on September 24, 2007, airing on Mondays at 8:00 pm ET. <P1-S2>  "Chuck" centers on Chuck Bartowski (played by Zachary Levi), an "average computer-whiz-next-door", who receives an encoded e-mail from an old college friend now working in the CIA; the message embeds the only remaining copy of the world's greatest spy secrets into Chuck's brain. <P1-S3>  The first season of "Chuck" aired in 2007–08, containing 13 episodes. <P1-S4>  After the 2007–08 Writers Guild of America strike, NBC renewed "Chuck" for a second season instead of extending the first to a full season of 22 episodes. <P1-S5>  The full-length second season originally aired in 2008–09. <P1-S6>  Episodes of "Chuck" are also available in various new media formats. <P1-S7>  The first through fifth seasons are available to purchase on DVD and Blu-ray. <P1-S8>  In the United States, United Kingdom and Canada, every episode is available for download from iTunes. <P1-S9>  Episode titles for "Chuck" are consistently formatted as "Chuck Versus...". <P1-S10>  For example, the pilot episode is titled "Chuck Versus the Intersect". <P1-S11>  This list is ordered by the episodes' original air date and not by the production codes, which show the order in which episodes were filmed. <P1-S12>  On May 13, 2011, NBC renewed "Chuck" for a fifth and final season consisting of 13 episodes. <P1-S13>  The series concluded with a two-hour finale on January 27, 2012. <SEP> <P2-S0> Charles "Charley" Horton is a former American football halfback who played one season with the Montreal Alouettes of the Canadian Football League (CFL). <P2-S1>  He was drafted by the Los Angeles Rams of the National Football League (NFL) with the eleventh overall pick of the 1956 NFL Draft. <P2-S2>  He played college football at Vanderbilt University and attended St. Petersburg High School in St. Petersburg, Florida. <SEP> <P3-S0> Jerome Abram Bettis Sr. (born February 16, 1972), nicknamed The Bus, is a former American football halfback who played for the Los Angeles Rams/St. <P3-S1>  Louis Rams and Pittsburgh Steelers of the National Football League (NFL). <P3-S2>  Bettis is sixth on the list of NFL rushing yards leaders. <P3-S3>  He retired in 2006 after the Steelers won Super Bowl XL in his native Detroit, Michigan, beating the Seattle Seahawks. <P3-S4>  Bettis was inducted into the Pro Football Hall of Fame in 2015.