<P> Thomas Kretschmann and Henry Goodman reprise their roles as Baron Wolfgang von Strucker and Dr. List , Hydra leaders who specialize in human experimentation , advanced robotics , and artificial intelligence from Captain America : The Winter Soldier . Linda Cardellini portrays Laura Barton , Hawkeye 's wife . Claudia Kim portrays Helen Cho , a world - renowned geneticist who helps the Avengers from her office in Seoul , and Andy Serkis portrays Ulysses Klaue , a black - market arms dealer , smuggler and gangster who is a former acquaintance from Stark 's weapons - dealing days . Julie Delpy appears as Madame B. , who mentored Black Widow into becoming an assassin . Kerry Condon voices the artificial intelligence F.R.I.D.A.Y. , a replacement for J.A.R.V.I.S. , while Spader also voices Stark 's Iron Legion droids . Josh Brolin makes an uncredited appearance during the mid-credits scene as Thanos , reprising his role from Guardians of the Galaxy . Avengers co-creator Stan Lee makes a cameo appearance in the film as a military veteran who attends the Avengers ' victory party . Tom Hiddleston was to reprise his role of Loki , but his scenes did not make the theatrical cut of the film . </P>
<P> Thomas Kretschmann and Henry Goodman reprise their roles as Baron Wolfgang von Strucker and Dr. List , Hydra leaders who specialize in human experimentation , advanced robotics , and artificial intelligence from Captain America : The Winter Soldier . Linda Cardellini portrays Laura Barton , Hawkeye 's wife . Claudia Kim portrays Helen Cho , a world - renowned geneticist who helps the Avengers from her office in Seoul , and Andy Serkis portrays Ulysses Klaue , a black - market arms dealer , smuggler and gangster who is a former acquaintance from Stark 's weapons - dealing days . Julie Delpy appears as Madame B. , who mentored Black Widow into becoming an assassin . Kerry Condon voices the artificial intelligence F.R.I.D.A.Y. , a replacement for J.A.R.V.I.S. , while Spader also voices Stark 's Iron Legion droids . Josh Brolin makes an uncredited appearance during the mid-credits scene as Thanos , reprising his role from Guardians of the Galaxy . Avengers co-creator Stan Lee makes a cameo appearance in the film as a military veteran who attends the Avengers ' victory party . Tom Hiddleston was to reprise his role of Loki , but his scenes did not make the theatrical cut of the film . </P>
who did josh brolin play in avengers age of ultron
who did josh brolin play in avengers age of ultron
Thanos
Thanos