Tim Matheson is an American actor. Some of his best-known acting roles include the title character of the 1960s animated Jonny Quest TV series, Eric "Otter" Stratton in the 1978 comedy film National Lampoon's Animal House, and the recurring role of Vice President John Hoynes in the 2000s NBC drama The West Wing, which earned him two Primetime Emmy Award nominations for Outstanding Guest Actor in a Drama Series.

Jonny Quest is an American animated science fiction adventure television series about a boy who accompanies his scientist father on extraordinary adventures. It was produced by Hanna-Barbera Productions for Screen Gems, and was created and designed by comic book artist Doug Wildey.