When Chuck Coleman appeared in his first episode ( "Soccer"),they were filming outside and there were bugs everywhere. He started squinting and twitching to keep them out of his face. The director saw this and toldhim to keep doing it in future episodes because he thought it would addto his character. Thus begun Chuck's trademark twitches. 

From episode 105 (courtesy RTL2)

Chuck, from episode 110 (courtesy RTL2), with Alice Pedermeir (Lindsay Sloane).

In episode 111 Chuck Coleman givesus the names of his parents: "Stuart and Irene Coleman did not raise anymorons." 
 

Birthday: August 28th, 1975 in Bethesda/Maryland (USA) 
He has a sister, Lauren. 

"The Wonder Years" seem to be Berman's first appearance on screen. 

• Andrew Berman wrote, starred and produced "THE QUINTESSENTIAL PIZZA BOY",which ran for five weeks at the Hudson Theatre in Hollywood. His sisterLauren Berman flew in from Chicago to direct the show.
• He was a guest star in the TV series "Mr. Rhodes" together with his "girl" from "The Wonder Years", Lindsay Sloane.
• Andy appeared in several TV commercials, for example in the Burger King"Lion King" commercials, for Ballpark Hotdogs (1999), Balance (2000), and for DiGiorno Pizza (2001).
• He was also writer and director of the movie Bit Players (2000).