David Orth is a Canadian actor.

The Lost World is a syndicated television series loosely based on the 1912 novel by Sir Arthur Conan Doyle, The Lost World. The show premiered in the United States in the fall of 1999. It ran for three seasons, the final two of which aired in syndication in the United States, before it was cancelled in 2002 after funding for a fourth season fell through. The final episode ended with an unresolved cliffhanger. All three seasons were released in DVD box sets in 2004.