Michael William Arnold was born on  May 4, 1999 in Philadelphia, Pennsylvania, USA.  In 2010, Michael made his feature film debut as Young Reese for 20th Century Fox's global blockbuster My Name Is Khan (playing the younger version of Kenton Duty) and had his breakout role in the independent dramedy Spork as Charlie (winner Best Feature of the Tribeca Virtual Film Festival). Charlie is a loner with two dads with effeminate traits and confused sexuality who becomes the love interest of Spork (Savannah Stehlin).

 Michael also appeared in an ABC FAMILY television movie. THE DOG WHO SAVED CHRISTMAS VACATION with Michael as the annoying, menacing cousin Zach. Michael was nominated for a Young Artist Award (2010) for Weird Al's Brain in 3D and again in 2011 for BEST PERFORMANCE IN A FEATURE FILM Supporting Young Actor Ten and Under for My Name is Khan. Michael also appeared as 'Billy' in the action thriller Trigger (2012) and is expected to appear as Jimmy in The Original Play James Play.

Michael has appeared on several TV series and appeared as 'Zach McGovern' in the made for TV movie The Dog Who Saved Christmas Vacation (2010). Some recent television appearances included roles in Kickin' It and Modern Family, he has also appeared on "Conan" and "Funny or Die Presents..."

Michael is a star on the rise with many talents to showcase with a great smile and open personality. He is often complimented by directors for being comfortable in his own skin and willing to take risks!. Additionally, he is the lead vocalist and hip hop dancer for an ongoing boy performance group, performing in many onstage productions including the National Tour of Dr. Seuss' The Grinch Who Stole Christmas at the Pantages Theater, completing new short films (Fiddler in the Darkness, My Education, Kids for Kidnapping) and writes his own music.

His hobbies are basketball, football, skateboarding, video games and reading. He attends regular public school and is a proud member of Student Council and loves to participate in charity events particularly those for people affected by bullying, cancer, homelessness, mental illness, and AIDS.