Between “Saturday Night Live,” dozens of movie roles and voice work on “The Simpsons” and “The Critic,” Jon Lovitz could be considered a comedy legend. His three-day gig at Cobb’s Comedy Club in San Francisco last week provided the opportunity to see the legend in action.

At the July 11 show, genial opening act Alex Thomas did a reasonable job warming up the crowd, taking care not to upstage the headliner. When Lovitz, 57, took the stage with aplomb, my first surprised thought was, “Oh my God, he looks like my dad.” This did not make his first salvo about oral sex with the Octomom easy to take.

His personal stories were hilarious, if a little cringe inducing. One rarely imagines him as a sexual dynamo, but his raunchy tales of attempted conquest show that age has not slowed him down. Another audience pleaser was his trick of playing song requests on a keyboard and messing around with the lyrics. True to form, one jerk in the crowd had to call out the mandatory “Freebird!” OK, it was me. My apologies to Mr. Lovitz.

Unfortunately, parts of his act fell through. Most notably, a mean bit about a rival comedian segued into some unabashed bashing of another — former “Full House” star Bob Saget. I immediately recognized the material, taken nearly verbatim from a 2008 Comedy Central Roast of Saget, in which Lovitz had participated. Seeing as it was seven years ago, it might be time for him to retire that particular rant.

Ultimately, the show had its high points, a few laughs, and of course that unforgettable voice. But the club’s two-drink minimum really helped me get through all those awkward patches.