Beginning his professional career as a child actor and model at the age of ten, MacIntosh is best known for his recurring role as Connor Stevens on the ABC Family drama series The Fosters.
[6] In 2011, MacIntosh made his television debut with a guest-starring role as a member of Ron's scout troop on the NBC comedy series Parks and Recreation.
[11] As a Ford child and teen model, he has appeared in print, including commercial and editorial campaigns for Mattel, Target, Gap, Porsche, Hang Ten, and Tom Tailor, among others.
[13] In two tweets on March 29, 2015, MacIntosh took issue with YouTube's decision to add an age restriction for access to video of his character's kiss scene with Byerly's character, prompting a vocal social media campaign, and YouTube removed the age restriction less than a day later.
[18][19][20] In addition, alongside his Fosters co-star Hayden Byerly, he is an advocate against bullying, encouraging youngsters to embrace their differences and lending his support to the "Be Good to Each Other" campaign.