Mr. Feeney may have been everyone's stern granddad, but the leather jacket-wearing, motorcycle-riding Jonathan Turner was the cool-dude teacher at John Adams High, and Shawn went to live with him after his dad took off yet again—even though apparently that wasn't Shawn's idea of a good plot twist.
"They only brought him in because Friends became a hit," Rider Strong recalled to Vanity Fair in 2011. "And ABC was like, 'We need twentysomethings on every show. Including on this kids' show that's only watched by teenagers.' And, remember, they had him and they had the character of Eli, who was the black young teacher. And they were going to have this whole twentysomething storyline. I don't know what they were thinking, but it was a complete disaster. It didn't work at all."
However, Shawn was devastated when Mr. Turner was in a motorcycle crash at the end of season four—which Turner recovered from off-camera and was never seen again until he resurfaced on Girl Meets World, having married a nurse he met in the hospital after the accident.
In the meantime, Quinn joined the drama on Melrose Place for a four-year stint, was on Pretty Little Liars in 2012, and popped up on Feud: Betty and Joan in 2017.
He's been married to Margaret Quinn since 1985 and they have two children.