Zachary Andrew Knighton[1] (born October 25, 1978[2]) is an American actor, best known for starring as Dave Rose on the ABC comedy series Happy Endings from 2011 to 2013 and as Orville "Rick" Wright in the rebooted version of Magnum P.I.

[5] In 2007, he starred in the horror film remake The Hitcher, with Sophia Bush, playing the role originally performed by C. Thomas Howell.

Previously, Knighton played Laz Lackerson on the short-lived television program, Life on a Stick.

From April 2011 to May 2013, Knighton starred as Dave Rose on the ABC comedy series Happy Endings, alongside Eliza Coupe, Elisha Cuthbert, Adam Pally, Damon Wayans Jr. and Casey Wilson.

[9] In 2018, Knighton was cast in the recurring role of Paul on the second season of the Netflix horror-comedy series Santa Clarita Diet.