Dan Aykroyd says sure, his Casper cameo is Ghostbusters canon

"You've got to include it in the canon, no doubt," Aykroyd answered when asked about Ray Stantz's 10-second scene in 1995's ...
American Songwriter

4 Grunge Songs From 1995 That I Still Obsessively Listen To

Whether you like her or not, it’s hard to disagree with the notion that Courtney Love has a great voice for grunge. “Violet” was one of several singles released after the release of their beloved ...

Dan Aykroyd Considers His ‘Casper’ Cameo Part Of ‘Ghostbusters’ Canon: “No Doubt”

Despite the apparent 30-year gap in their resume, Dan Aykroyd's 'Ghostbusters' character was still booked in the 1990s.
Consequence

Casper’s Ghostbusters Cameo Is Finally Confirmed as Canon by Dan Aykroyd

Dan Aykroyd has confirmed that his Casper cameo as Ray Stantz is canon to the Ghostbusters universe - plus, he updates on the ...

“I ended up changing the whole song because Tony broke up with me”: How Gwen Stefani's heartbreak inspired a No.1 hit

ABBA’s The Winner Takes It All, the lead single from their 1980 Super Trouper album, was written after the divorce of members ...