TV 06/07/2013 08:45 am ET Updated Aug 07, 2013 Samuel L. Jackson Wants To Guest Star On 'S.H.I.E.L.D.' www.vulture.com AP Clark Gregg is set to reprise his role as Agent Coulson in Joss Whedon's S.H.I.E.L.D. — but what about Samuel L. Jackson? Download Read more on www.vulture.com MORE: Tv Canada Samuel L Jackson Shield Shield Samuel L Jackson Shield Guest Star Samuel L Jackson Subscribe to the Entertainment email. Home to your favorite fan theories and the best movie recs.