Ross Marquand (born 1981 in Denver, Colorado) received his training in theater and singing at the University of Colorado in Boulder. In 2013, he portrayed screen legend Paul Newman in the series Mad Men and demonstrated his vocal talent in the TV series Phineas and Ferb and Conan, as well as in video games such as Battlefield Hardline. His best-known roles include “Aaron” from The Walking Dead and “Red Skull” in Avengers: Infinity War and Avengers: Endgame. He also has well-known voice roles in Doctor Strange in the Multiverse of Madness, Invincible and X-Men 97