13 Identical Twins

From:  The  Backlot

Actors 

Kelly Donovan 

& 

Nick Brendon

Kelly Donovan (left) (born April 12, 1971 as Kelly Donovan Schultz in Los Angeles, California), is an American actor. He is best known for his work as the stand-in for character Xander Harris, the role portrayed by his identical twin brother, Nicholas Brendon, on Buffy the Vampire Slayer, as well as sharing the role on-screen in one episode. He has also appeared on other television shows such as Alias as a stunt double.

Nicholas Brendon (right) (born April 12, 1971, as Nicholas Brendon Schultz in Los Angeles, California), is an American actor best known for his character Xander Harris in the television series Buffy the Vampire Slayer (1997–2003).Nicholas Brendon was born Nicholas Brendon Schultz on April 12, 1971 in Los Angeles,  three minutes after his identical twin brother, Kelly Donovan.