There’s no doubt that Marcus Rosner has a lot to celebrate both personally and professionally. For instance, when it comes to his work, the popular Hallmark star can be seen in the recently released Christmas in July movie, “Snowbound for the Holidays.” On the personal side, he has a loving wife (who’s also in the entertainment industry) and a baby boy who the couple welcomed into the world back in January.
Now, Rosner is celebrating his birthday by sharing a video of his son marking a major milestone of his own.
Watch Marcus Help His Baby Boy Learn to Walk
Rosner took to Instagram on Monday, August 10, to share the special video. In the black and white recording, viewers can see what we assume are the actor’s feet in socks shuffling alongside the teeny tiny bare feet of his baby boy. That’s not to mention the chubby legs that are just too cute to handle!
As the little one dips and wobbles, he also takes a few steps forward while seemingly getting a little help from his dad who is likely holding him up to provide some balance.
In the caption of the post, Rosner simply noted his age, writing, “37”
As you might expect, the sweet video prompted plenty of comments from Rosner’s friends and followers. While some people sent messages for the doting dad’s birthday, others were more focused on the baby boy’s efforts.
For instance, Hallmark alum Cindy Busby who appeared in “Love in Zion National: A National Park Romance” (2023) and “Everything Christmas” (2023) wrote, “Happy Birthday Marcus!!!!”
“He’s doing very well for his age, wait till he gets going you’ll know about it then he’ll be in to everything lol 🩵,” came from another social media user.
Someone else left a comment for the star, saying, “Happy Birthday Marcus! Hope it’s a great one! And congratulations on being a new daddy!🥰🥳🎉🎂❤️🩵🍼🧸”
Marcus Shares the Memories He’s Been Making with His Baby Boy
Although Rosner opted to pop a photo of himself and his son (or, at least, their feet) on Instagram for the star’s birthday, this isn’t the first time the actor has shared a look at his baby boy.
In fact, while Rosner has spent the first half of 2026 working, traveling and generally staying busy, he’s also been soaking up every moment of being a new dad.
Just take a look at his post from June 21 (above). While Rosner always keeps his son’s face away from the camera, his current signature pose is holding his little one up to view the world around them.
You can see the him do just that in the photo collection while showing his son glowing jellyfish at an aquarium (perhaps in Toronto), checking out a Blue Jays baseball game, seeing the Parliament Buildings in Ottawa and watching a very Canadian parade pass by.
Rosner can also be seen giving the little one a glimpse of towering skyscrapers in New York, posing in front of a picturesque fountain and looking at ancient ruins in Greece. That’s not to mention seeing his dad on “Sullivan’s Crossing.”
A month earlier, Rosner also posted a photo of himself holding his son while at the beach, and wrote a caption, saying, “I was so scared the absence from my own childhood left me unprepared. I was so wrong. I’m…great at this.”
Happy Birthday Marcus 🎉🎉🎁🎁
Secondly, what an Incredible Gift, having that Precious baby boy to see and learn through His Eyes💞💞
Thank you for sharing one of his first memorable moments with All of Us🙏🙏