Marcus Rosner is already one proud papa. Nearly three months after welcoming his first child in January 2026 with his wife, Ali Kroeker, the longtime Hallmark hunk and new “Sullivan’s Crossing” cast member says their baby boy is already taking after his parents.
Marcus Rosner Says His Little Guy Already Seems Curious About the World Around Him
Rosner, who announced his little one’s birth in a social media post on February 1, has shared periodic updates on life as a new dad, including in a sweet Instagram Story he posted on March 31.
Posting a photo of himself holding his little guy gripping his shirt and trying to lift his head, the “Falling Like Snowflakes” star wrote, “You can’t pick who they are. I know that. I accept that. I love that.”
“Buttt — if you would have asked me which singular trait I would choose, if able, it would have been: Curiosity,” Rosner sweetly admitted. “And that is the one thing that has already made itself incredibly apparent. Boy be lookin. ❤️👀🕵🏻♂️”
It makes sense that curiosity would be important to Rosner, who is a voracious reader and traveler. Kroeker, whom he married in 2021 in Guatemala’s Convento Santa Clara, also loves to take deep dives into history and science. She’s worked as a producer and writer for miniseries including “Secrets of the Underground Railroad,” “Secrets of Ancient Structures,” and 2025’s “Alien Corridors.”
Kroeker also helped Rosner develop his award-winning 2026 short film “Emergency,” about two children who form an “unexpected bond” during a late-night emergency room visit “amidst the guarded silence of hidden suffering.”
Fans & Friends Have Loved Receiving Insights Into Marcus Rosner’s First Months as a Dad
Rosner’s fans and friends have loved watching the actor and producer fall in love with being a dad, flooding him with comments on his periodic posts — including a “rant” on March 12 that showcased how blown away he is by every little special moment with his little guy.
“I dunno I’m not coping well but it’s amazing,” he adorably admitted after listing off all the things that had him gobsmacked after becoming a dad.
Fellow Hallmark star Kat Barrell commented on that post, “❤️❤️❤️❤️ Accurate. You’re doing it right.”
Someone else affirmed, “You said all the things correctly. You are spot on with your feelings. You love them so much it’s just a load of emotions. Enjoy every minute. My babies are 22 and 27 and I’ve enjoyed every single stage. Bless you and your lovely family. ❤️”
“OMG THISE FEELINGS ARE PERFECTION,” someone else wrote. “You are the best. I feel the same about my kids and they are older!!! God has given the gift of them to me. I am to take care of them and remember God has loaned them to me to teach them to be amazing humans”
