He also had a long-runnng western series THE ADVENTURES OF WILD BILL HICKOK. He is also good with Jean Simmons in the 1956 drama HILDA CRANE (review at Simmons label) and I like FIVE AGAINST THE HOUSE (also with gay Kerwin Matthews), and like Jeffrey Hunter, Tab Hunter, Robert Wagner, Tony Perkins etc he was a leading man of the 1950s, before the new crop arrived: Troy Donahue, Fabian, young Warren Beatty, Redford, etc.
Like a lot of others he then did several costumers in Europe, as did his pal Rory Calhoun (who did a good one: Leone's THE COLOSSUS OF RHODES in 1961). One of Guy's SLAVE OF ROME in 1961, is on YouTube, where he co-stars with Rosanna (HELEN OF TROY) Podesta: https://www.youtube.com/watch?v=xiPJoCrbtQA
The boys went fishing a lot (and really caught fish, unlike BBM), both were clients of the notorious agent Henry Willson (Below with the boys). Guy was married for some years to the fragile actress Gail Russell, whom we like a lot, and he had 4 children by his second marriage. Rory was married to actress Lita Baron (usually a tough cookie in westerns), but like Cary Grant and Randolph Scott, and Tab and Tony Perkins, their friendship endured during their marriages.
Guy and Rory both did an intriguing-sounding 1949 western: MASSACRE RIVER. One to check out? He seems a bit clunky jitterbugging though ... More Guy at label.
Looking at MASSACRE RIVER now the chemistry between the boys is startling, with all that horseplay and fooling around, as Rory's trousers fall down and they grapple in the hot tub. The rest of it is standard 1940s horse opera. Guy had a good run in cavalry uniform, as here and THE COMMAND in 1954 (which I saw when I was 8, one of the first films I saw), THE LAST FRONTIER in '56, and others.