Michael Alan Welch (born July 25, 1987) is an American actor. He is best known for his role as the popular Mike Newton in the Twilight Saga franchise (2008-2011), Mack Thompson on Syfy's Z Nation (2014), Luke Girardi on CBS's Joan of Arcadia (2003-2005), Butte Whipple in The Ballad of Lucy Whipple (2001), and Artim in Star Trek: Insurrection (1998).

Since he was a child, he has had numerous guest roles in popular series including Walker, Texas Ranger, The X-Files, Touched by an Angel, The Pretender, Stargate SG-1, Frasier, 7th Heaven, Judging Amy, Law & Order, Law & Order: SVU, CSI, CSI: Miami, Numb3rs, Cold Case, Criminal Minds, NCIS, Bones, Malcolm in the Middle, Grimm, Lucifer, Station 19, and Quantum Leap (2022). He has also starred in many TV movies and voiced for animated series.