At Asylum 2009, Jensen revealed that he had a dog called Icarus.
Jensen: She (Danneel) called me about two years ago I think I was out playing golf...and I get a phone call and she's like, 'I bought a puppy.' And I said, 'You're kidding, right?' She says, 'No, I couldn't stand it. They were there and I had to get one.' And I'm like, 'Why didn't you do a rescue one?' and she was like, 'Well, somebody needs to rescue them...Unfortunately they just cost money.' … Anyway, I was like, 'Well, what is it?' Cause I knew it would end up, you know...I was going to end up having to take care of the thing... and she says, 'it's a cockapoo.'
I said, 'What the hell is that? Please tell me it's like a big, giant, huge, manly dog.' 'No, no, it's half cocker spaniel and half poodle. And it's all white.' I'm like, 'How big do those get?' [imitating Danneel's voice] 'Oh, you know, 15 pounds.' So, needless to say, I was a little upset and turned off by it... but then when I got home and I saw this like … little stuffed animal I was like, 'eh, he's kind of cute.' And that was two years ago and so he's become my dog.
His name is Icarus. (shows photo on phone). That's my boy. And his best friends are... guess who? Sadie and Harley. Who are 70 pounds and 120 pounds. And Icarus goes toe to toe with those two. Vicious. I mean they fight...not fight like angry... but they will play so hard … in fact at one point Icarus was jumping onto Harley's face and like grabbing his jowl and hanging there...and all in fun, Sadie, you know, would take her whole mouth and put it over his [Icarus's] body and then he'll pop up again and go after Harley and Harley's like, 'OW, what is this thing?' And at one point, Harley swung his head and hit Icarus as he was jumping and he did a helicopter. Most amazing thing I've seen. So, anyway, yeah, the cats out of the bag, I have a cockapoo.
In a tweet on February 8, 2011, Dannel mentioned that Icarus now had a brother Oscar.
On 23 March 2012, Danneel tweeted a photo of Icarus and Oscar wearing lifejackets, presumably getting ready for a trip on the Ackles' boat.
At Jus In Bello Italy 2019 Jensen reported that 13 year old Icarus was "still chasing squirrels and birds like he is two."