Besides having a real-life twin brother, Nicholas was born on exactly the same day as fellow WB Network star Shannen Doherty (of Charmed fame).
Nick Served as the honorary chairperson of the Stuttering Foundation of America's Stuttering Awareness Week in 2001, 2002 and 2003.
Nicholas was Named #4 in the Top Ten Sexiest Men of the Buffy / Angel universe in a fan poll originated by the Buffy the Vampire Slayer fanzine in 2004.
His nickname is "Nicky".
Nick attended Pasadena City College.
While Nicholas was acting on the television show Buffy the Vampire Slayer, he rode a skateboard in his first scene in the first episode "Welcome to the Hellmouth", but because it was so hard to film that was the only time he ever rode it. He can be seen holding it on another two occasions for continuity's sake.
Nicholas was actress Marley Shelton's high school prom date. He bought her 100 roses, wore a tux, and drove a black convertible Mustang. Marley said that he "totally did it right."
Nicholas was 25 years old when he was cast as Xander Harris on Buffy the Vampire Slayer, but the character of Xander was a mere 16 years old.
Nicholas made his television debut in a Clearasil commercial.
Nicholas has two tattoos: a cross with a jewel in the centre in his right arm and a Latin symbol on the bicep of his left arm.
Nick has hazel eyes.
Nicholas is 5'11" tall.
Nicholas is 3 minutes younger than his twin brother Kelly.
Nick was the Production Manager for the 2002 film Demon Island, in which he also starred.
He was an Associate Producer for the 2002 film Demon Island, in which he also starred.
He was an Associate Producer for the 2006 film Unholy, in which he also starred.
Voiced the character of Xander Harris for the two video games, Buffy the Vampire Slayer and Buffy the Vampire Slayer: Chaos Bleeds.
Starred in the 2004 TV film, Celeste in the City as Dana.
Appeared in the 2003 TV Pilot The Pool at Maddy Breaker's. Unfortunately, the pilot was not purchased and was never aired or released on any other format.
Appeared in the 2000 film, Psycho Beach Party as Starcat.
Appeared in the 1995 film, Children of the Corn III as Basketball Player One.
Nicholas and Kelly have two younger brothers named Christian and Kyle.
Went into acting as a way to overcome his stuttering problem.
Nicholas made an estimated $9,360,000 playing the role of Xander Harris in the series Buffy the Vampire Slayer.
On the series Buffy the Vampire Slayer, Nick reportedly made $65,000 per episode.
Nick was in a total of 143 episodes of Buffy the Vampire Slayer. This is the fourth highest number of appearances in the Whedonverse. He appeared in every episode of Buffy, except for the episode "Conversations With Dead People" (7x07).
He once admitted to lying on his resume. Nick appeared as a guest on The Young and The Restless but decided to list himself as a recurring character on his resume because "it looked good."
His career began with a stint as Production Assistant on the CBS show Dave's World. His work behind the camera led to an audition for a guest role on the series.
Nick married Tressa di Figlia on September 1 2001. The newlyweds later co-starred together in the 2002 film, Demon Island.
Nicholas Brendon: One night I went out into the backyard and I was talking to God - asking for directions - and acting was the answer I got. That was pretty terrifying, because I was not a confident kid. I had a stutter. I had ears that stuck out and acne. I was definitely not cut out for acting. But I decided to chance it.
Nicholas Brendon: Buffy requires a certain level of devotion. It's amazing how committed people are to it. I recently met someone who was completely obsessed with it, and he kept referring to things that had happened on the show that I wasn't even aware of.
Nicholas Brendon: Acting in front of an audience is amazing - you get an energy from the audience that's just like theater.
Nicholas: I love being in the kitchen. It's kind of artistic for me. I definitely enhance and make things up. I'll open up a recipe book and say, "Oh, let's try that and alter it."
Nicholas Brendon: I want people to say, "Nicholas Brendon, he's supposedly the nicest guy in the world." I want to do good work, but more than that, I want to stay a good human being. That's more important than any character I play.