Movies:
* The Black Castle (1952)
* The Cruel Sea (1953) - A major role as Lieutenant "Tiny" Barstow
* The Red Garters (1954) - A musical comedy alongside Rosemary Clooney and Gene Kelly
* The King's Thief (1955)
* The Mole People (1956) - A classic science fiction film
* The Sword of Monte Cristo (1961)
* The Last Outpost (1951)
* The Dalton Gang (1960)
* The Mad Doctor of Market Street (1964)
* The Carpetbaggers (1964) - A notable role as a charismatic and wealthy Latin American
* The Return of the Seven (1966)
* The Devil's Brigade (1968)
* The Undefeated (1969) - A western film with John Wayne
* The Last Woman on Earth (1961)
Television:
* The Adventures of Rin Tin Tin (1954-1957) - Appeared in multiple episodes
* The Lone Ranger (1949-1957) - Appeared in multiple episodes
* The Adventures of Superman (1952-1958) - Appeared in multiple episodes
* The Life and Legend of Wyatt Earp (1955-1961) - Appeared in multiple episodes
* Maverick (1957-1962) - Appeared in multiple episodes
* Have Gun - Will Travel (1957-1963) - Appeared in multiple episodes
* Wagon Train (1957-1965) - Appeared in multiple episodes
* The Virginian (1962-1971) - Appeared in multiple episodes
* The Wild Wild West (1965-1969) - Appeared in multiple episodes
* The Big Valley (1965-1969) - Appeared in multiple episodes
* Gunsmoke (1955-1975) - Appeared in multiple episodes
* Bonanza (1959-1973) - Appeared in multiple episodes
* The Partridge Family (1971-1974) - Played the role of "Ruben" in multiple episodes
* Fantasy Island (1977-1984) - Appeared in multiple episodes
* The Love Boat (1977-1986) - Appeared in multiple episodes
This is not an exhaustive list, but it includes some of Fernando Lamas' most well-known and popular roles. His charismatic personality and dashing good looks made him a popular figure in Hollywood, and his contributions to film and television continue to be enjoyed by audiences today.