He has written for such programs as The Suite Life of Zack and Cody, The Suite Life on Deck, The JammX Kids, The Sausage Factory, Smart Guy (which he also directed), Who's the Boss?, The Upper Hand, The Charmings, Silver Spoons, and Mama's Family. He has a company called Danny Kallis Productions which produced Smart Guy and The Suite Life on Deck.
He produces or produced Arwin! (not picked up by Disney), The Suite Life of Zack and Cody, The Suite Life on Deck, The JammX Kids, The Sausage Factory, Grown Ups, Smart Guy, Hangin' with Mr. Cooper and Phenom.
Danny Kallis Productions
Danny Kallis Productions was created in the 1990's and was the main production company for Smart Guy. They closed down due to low production popularity. Danny Kallis recently re-opened to produce The Suite Life on Deck, the new Disney Channel TV series. The new logo which can be seen during the closing credits of The Suite Life on Deck" was produced by Mammoth Visual Effects. The old one can be seen on the closing credits of Smart Guy.
Kallis left The Suite Life on Deck part-way through the second season to pursue other projects.