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Tom Pelphrey 'Can't Imagine Matilda Having a Greater Role Model' Than Kaley Cuoco as Actress Marks 38th Birthday

Pelphrey listed his favorite qualities he's seen in Cuoco, and shared his hopes that their daughter grows to be as "independent, talented, hilarious, generous, incredibly kind and thoughtful"

<p>Kaley Cuoco Instagram</p> Kaley Cuoco, Tom Pelphrey and their daughter Matilda

Kaley Cuoco Instagram

Kaley Cuoco, Tom Pelphrey and their daughter Matilda

Tom Pelphrey is honoring his partner Kaley Cuoco on her 38th birthday!

In celebration of the Big Bang Theory alum turning another year older, Pelphrey, 41, shared a series of photos featuring the couple’s happiest days with their daughter Matilda in a tribute post to Instagram Thursday.

“Happy birthday to my fave,” he wrote in the caption. “Life has exploded into a million new dimensions since we first met, every one more beautiful and meaningful than the last.”

Alongside car selfies, family photos with their dogs and shots of Cuoco with their baby, he continued: “You are truly an amazing partner and an incredible mom. I can’t imagine Matilda having a greater role model to grow up emulating than her mom…. her independent, talented, hilarious, generous, incredibly kind and thoughtful mom.”

“So HAPPY BIRTHDAY from me and all the little ones. We love you!!!! ♥️💫🙏♥️💫🙏,” Pelphrey continued.

Since giving birth in March, Cuoco has shared several photos of Matilda on her Instagram. In April, the actress exclusively told PEOPLE about her life as a first-time mom and how "natural" Pelphrey is as a dad.

"I cannot believe how natural he is, how much he loves it," she gushed at the time. "I mean, when we were in the hospital, he did everything — every diaper, he's the swaddle king. All the nurses said, 'Oh my God, you're the best guy swaddler we've ever seen."

Related: Kaley Cuoco Twins with Baby Matilda in Adorable New Photo: 'Mini Me’

Pelphrey wasn’t the only one who marked the occasion of Cuoco’s birthday.

Her sister, Briana Cuoco, shared a collage of her favorite moments with the actress on her Instagram Story.

“happy birthday sister!!!!! i love you so much. thank you for your laughter & love,” she wrote. “would never wanna know what life is like without it.”

Pelphrey’s sister, Lauren, quickly followed suit and also paid tribute to the Flight Attendant star with a selfie shared to her Story.

<p>Kaley Cuoco/instagram</p> Lauren Pelphrey pays tribute to Kaley Cuoco on her birthday

Kaley Cuoco/instagram

Lauren Pelphrey pays tribute to Kaley Cuoco on her birthday

Related: Kaley Cuoco and Tom Pelphrey's Relationship Timeline

“Happy birthday to one of my favorite humans,” she captioned a selfie of the duo.

Lauren continued, listing her favorite things about the actress: “Voice notes and hair clips and night gowns and laughing and crying and babies and tuna subs and dateline and total 100% honesty… I love you like a sister and am so grateful to have you.”

<p>Kaley Cuoco/instagram</p> Amy Davidson pays tribute to Kaley Cuoco on her birthday

Kaley Cuoco/instagram

Amy Davidson pays tribute to Kaley Cuoco on her birthday

Cuoco’s 8 Simple Rules costar Amy Davidson posted a throwback photo of the duo showing off their shoes on a pink carpet while Brad Goreski shared a cute video of the actress “feeling” herself he fawned over her beauty.

Her Based on a True Story castmates Liana Liberato and Priscilla Quintana also honored her with posts to their Instagram Stories.

<p>Kaley Cuoco/instagram</p> Liana Liberato pays tribute to Kaley Cuoco on Instagram

Kaley Cuoco/instagram

Liana Liberato pays tribute to Kaley Cuoco on Instagram

Related: Kaley Cuoco Shares Sweet New Photos of Baby Daughter Matilda: 'That's My Girl'

Liberato shared a photo of Cuoco on set holding an inverted umbrella as well as a throwback photo of the two in another slide.

“happy birthday to my sister,” she wrote. “the best gal love you. we’ve known each other for so long…”

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Quintana, on the other hand, shared a funny video of the duo wearing bikinis on a set. Cuoco appeared to be far along in her pregnancy and she approached Quintana with a gold chain around her belly. At the sight of her, she burst into laughter.

“Happy Birthday to the one and only @kaleycuoco,” she captioned the post. “LOVE YOU!!!!!!”

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