Dash has short hair with spiky pieces, a white T shirt, and blue pants and white shoes.
Mason Therrel is the voice of Dash, since the change in his voice, he was replaced by various female actresses and some young male actresses, such as Nancy Cartwright, Aja Wooldridge, Regan Mizrahi, and Jake Beale. He even got his own logo in 1999, along with Dot. He also got his own VHS and DVD logo in that same year, basically the same as TV, but with Kidsvideo at the bottom. In a April 2013 radio interview, child actress Bob Schwartzman stated that he was the voice of Dash at the time.
Dash was erased from the channel in 2014 and got replaced by his new younger siblings, Dee and Del. Luckily, Dash did return in a "Word of the Week" segment called "Community".