Although he also starred in the 2000 Frankie Muniz-Kevin Bacon feature My Dog Skip (as the older Skip), he was best known for stealing scenes from Kelsey Grammer on the long-running Emmy-winning NBC sitcom.
“I saved him from the pound. His owners called me as a last resort,” Halberg recalled. “He was extremely mischievous, always escaping, chewing up things and running off. When he killed a neighbor’s cat and chased some horses, that was it.”
Not that anyone who owns a Jack Russell would find such behavior surprising. “But then,” remembered his trainer, “he began his career, and he will never be forgotten.” [LINK]