Jason Segel was thrilled to work with his "idol" Michael J. Fox in Shrinking

Jason told ScreenRant: "When we heard that Michael J. Fox was going to appear on this show, I think we all felt really honoured. He's an idol of mine.

"There was a period when me and my crew - it's 20 years ago now for me - but when I was doing a TV show and trying to make movies at the same time, and it's scary and exhausting, and we would literally say to each other, 'Hey, Michael J. Fox did it.' We would say it all the time."

Jason described how he "got to tell" Fox how much he meant to him through their work on the show.

The How I Met Your Mother star recalled: "I got to say like, 'Hey, I want you to know, in a period when I was trying to figure out what I could do with this job, you were like our true north.'

"It was really cool to get to say that to him."

Hollywood legend Harrison Ford also appears in Shrinking and Segel is amazed at how "handsome" the Star Wars icon is at the age of 83.

He told The Hollywood Reporter: "I was just doing a little bit of ADR [Automated Dialogue Replacement] and Harrison Ford came on screen. "I was like, 'Oh, my God, he's so handsome.' (Laughs)

"It's really insane to me that at 83 years old, if I was in a bar and it was between me and Harrison, I would still choose Harrison. The guy is so amazing, and so is the vulnerability with which he explores getting older."

Meanwhile, Michael Urie - who also appears in the comedy-drama - recently described how Harrison's "cantankerous" public person is merely "an act".

He told People magazine: "He's silly and makes work fun. He loves being [on set], he really, really loves being there.

"I know he seems cantankerous on the red carpet, [but] that's just an act. He's actually very sweet, and he loves being there."