One week from today, the wedding everyone will be talking about is set to happen when Leonard (Johnny Galecki) and Penny (Kaley Cuoco) tie the knot a seconde time on The Big Bang Theory Season 10 premiere. As the countdown continues towards this big event, we have new photos from the season premiere, giving us our first look at Katey Sagal as Penny's mother, and Jack McBrayer as her brother. If that wasn't enough, we have a wedding photo with both sides of this new family, plus a look at a supercut of your favorite Leonard and Penny moments.

The premiere will also mark the return of Judd Hirsch as Leonard's father, who was introduced last season, and Christine Baranski as Leonard's mother. Along with these photos, Entertainment Weekly also got to speak with executive producer/showrunner Steve Molaro, who revealed that tensions are high in Penny's family. Her brother, the drug dealer Randall, has found himself in quite a bit of trouble leading up to the wedding. Here's what Steve Molaro had to say below.

"Penny's close with her dad [Keith Carradine]. As we know, her brother Randall has been a bit of trouble over the years, selling drugs and being in and out of jail, and that's put a lot of stress on her mom. You will pick up on the tensions between her mother and her brother very quickly, and you get a glimpse of Penny and her dad being caught in the middle of that."

In a separate interview with TV Line, Steve Molaro also told some stories from the set, revealing that Johnny Galecki kept texting him from the soundstage just to say that the cast was "simply having the greatest time." With the addition of all these guest stars, one might think that some characters won't get a chance to shine, but that isn't the case. Here's what Steve Molaro had to say about this episode, which clocks in at just over 20 minutes, adding he hopes to bring Jack McBrayer and Katey Sagal back for more episodes.

"Every character on the show has something great to do, (their time) got nicely distributed. Now that they are officially members of the Big Bang family, we would love to have them come back so we can service them with more time and energy than we could in the premiere."

These new photos below also give us our first look at another new guest star, Breaking Bad star Dean Norris. We reported last month that the actor is playing Captain Williams, a tough Air Force representative who is interested in the roommates' quantum gyroscope for military applications. The character will be featured in the first three episodes of the new fall season. Take a look at these new photos from The Big Bang Theory Season 10 premiere, and visit TV Line for a supercut of your favorite Leonard and Penny moments.