Daniel Eugene Butler is an American actor known for his role as Bob "Bulldog" Briscoe on the TV series Frasier (1993–2004); Art in Roseanne (1991–1992); for the voice of Mr. Simmons on the Nickelodeon TV show Hey Arnold! (1997–2002), later reprising the role in Hey Arnold!: The Jungle Movie (2017); and for film roles in Enemy of the State (1998) and Sniper 2 (2001).

Hey Arnold!: The Jungle Movie is a 2017 American animated adventure comedy television film based on the Nickelodeon series Hey Arnold!, which was created by Craig Bartlett and originally aired from 1996 to 2004. Following the 2002 theatrical film Hey Arnold!: The Movie, The Jungle Movie expands on the two-part episode "The Journal", which originally aired on November 11, 2002 during the series's fifth season.