Lyle Wesley Waggoner (/ˈwæɡnər/ WAG-nər; April 13, 1935 – March 17, 2020) was an American actor, sculptor, presenter, travel trailer salesman and model, known for his work on The Carol Burnett Show from 1967 to 1974 and for playing the role of Steve Trevor and Steve Trevor Jr. in Wonder Woman from 1975 to 1979. In his later career he founded a company, Star Waggons, which rented luxury trailers to studios.

Waggoner was born in Kansas City, Kansas, on April 13, 1935, the son of Myron and Marie (Isern) Waggoner, and spent part of his childhood in Excelsior Springs, Missouri. On an episode of The Carol Burnett Show, Waggoner stated he had three sisters and one brother. In 1953, he graduated from Kirkwood High School in Kirkwood, Missouri, and then studied briefly at Washington University in St. Louis. He then joined the United States Army, serving two years in West Germany as a radio operator.

Following his military discharge, Waggoner studied mechanical engineering in the junior executive program at the General Motors Institute of Technology. He then sold encyclopedias as a door-to-door salesman. He made his acting debut as a muscle man in a Kansas City production of Li'l Abner, after which he created a sales promotion organization that enabled him to make enough money to finance a trip to Los Angeles to pursue his acting career.

By the mid-1960s, Waggoner was appearing regularly in television and films, including in an episode of Gunsmoke (“The Wishbone” in 1966). He was a finalist for the title role in the TV series version of Batman, but lost the role to Adam West.

In 1967, he appeared in Catalina Caper (with Tommy Kirk, a former child actor trying to restart his career as a young adult), a film which would eventually be lampooned by Mystery Science Theater 3000. He also had a minor guest-starring role in the season-three episode "Deadliest of the Species" of the TV series Lost in Space.

Also in 1967, Waggoner began a seven-year stint on The Carol Burnett Show, a comedy sketch and variety show, on which he appeared as an announcer and performer. In 1973, Waggoner posed semi-nude for a Playgirl centerfold. Waggoner left The Carol Burnett Show in 1974 in the hopes of advancing his career as a lead actor. His spot on the show was filled by frequent guest star Tim Conway (and his role as announcer by Ernie Anderson). He later appeared on some of the show's reunion specials.

In 1976, Waggoner was appointed "mayor" of Encino, California, by the local chamber of commerce. The "mayor" is not an actual government official as Encino is not an independent town but rather part of the city of Los Angeles; the post is an honorary "goodwill ambassador" position. In addition to Waggoner, other holders of the title have included Steve Allen, Mike Connors, Fred Travalena, Ronnie Schell, and Cesare Danova.

A year after leaving Carol Burnett, Waggoner landed the role of Steve Trevor for the pilot and first season of the television series Wonder Woman starring Lynda Carter. The series was initially set in World War II but when the subsequent two seasons advanced the timeline to the 1970s, Waggoner played Steve Trevor, Jr.