Lyle Alzado
Lyle Alzado was a football player and an apparent friend of Mario and Luigi who apparently visits them occasionally at Mario Brothers Plumbing.
In The Super Mario Bros. Super Show! episode "Mario's Magic Carpet / Marianne and Luigeena", Lyle pays a visit to Mario and Luigi, but when he arrives at their apartment, the two are absent, having gone to get refreshments.
Deciding to simply wait until Mario and Luigi arrive, Lyle decided to make himself comfortable, only to be disturbed by Mario and Luigi's cousins, Marianne and Luigeena, who had an obvious crush on Lyle. Continually flirted with by Marianne and Luigeena, a nervous Lyle kept trying to spurn their advances while waiting for Mario and Luigi.
Eventually, Luigeena left, leaving Lyle alone with Marianne, who continued to flirt with him. After a while of trying to ignore Marianne, Lyle was met with with Luigi, who managed to get Marianne away from Lyle. Eventually, Marianne left to search for Luigeena, though not before reminding Lyle of their date that night, much to Lyle horror.
After meeting with Mario, Lyle was later informed by Marianne and Luigeena that their date with him was cancelled, as the two decided to go off and stalk Mel Gibson whom they had recently seen, rather than date Lyle; this left Lyle somewhat depressed, as he had actually wanted to go on a date with Marianne and Luigeena, though when Lyle told Mario and Luigi this, the two simply thought Lyle to be joking.