Seth Rogen reveals list of stars including Paul Rudd and Jonah Hill he's smoked weed with... but the biggest surprise is that James Franco 'doesn't smoke'

He's known for playing stoner characters in films such as Pineapple Express and Knocked Up.



And during a chat with Andy Cohen on Watch What Happens Live on Wednesday night, Seth Rogen dished the dirt on the fellow celebrities he's smoked marijuana with in real life.



While some - such as Snoop Dogg and Paul Rudd - weren't all that shocking, one rather surprising revelation to come out of the segment was that James Franco doesn't smoke weed.



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Loose lips sink ships! Seth Rogen has named and shamed some of Hollywood's biggest actors as people he's smoked marijuana with during an appearance on Watch What Happens Live on Wednesday night

Good sport: The actor was only too happy to participate in the segment dubbed Spill The Herbal Tea

'I'm going to go through a list of your co-stars and celebrity friends, you tell me if you've blazed up with them or not,' Andy explained of the segment dubbed Spill The Herbal Tea.



Beginning with what seemed to be a no-brainer - James Franco - the host got a rather gob-smacking response he clearly wasn't expecting.



'This is really depressing for me to say... I've never smoked weed with James Franco - because he doesn't smoke weed,' the 31-year-old replied.



'This is really depressing for me to say... I've never smoked weed with James Franco': The shock revelation of the segment was that Seth's good pal and regular co-star, James Franco, 'doesn't smoke weed'

He's got back up: James's brother, actor Dave Franco, who also just so happened to be a guest on the show that evening, nodded in agreement that his brother doesn't partake

Good role model: Dave, meanwhile, revealed the closest he's probably ever come is inhaling 'secondhand smoke' from being around Seth

'Oh my God! That's headline news!' the 45-year-old said in earnest.



'That's why he's such a good actor!' Seth added, lamenting: 'It's really sad, actually.'

Joined in the Clubhouse by James's younger brother, 28-year-old actor Dave Franco, he too said the closest he'd come was 'secondhand smoke' from Seth.



Rolling off a quickfire list of other stars, Seth didn't hold back from dobbing in his fellow stoner pals.



Paul Rudd: 'Oh yeah, lots of times.'



A resounding yes! Seth replied, 'Oh yeah, lots of times,' when asked about Knocked Up co-star Paul Rudd

'No, but we talked about it a lot': While he hasn't smoked with his The Guilt Trip co-star Barbra Streisand, he did mention that 'she smoked weed with Peter Sellers', calling it the 'craziest s*** ever!'

Sarah Silverman: 'Yes, many times.'



Snoop Dogg: 'Yeah, actually I have!'



Barbra Streisand: 'No, but we talked about it a lot. She smoked weed with Peter Sellers though. That's the craziest s*** ever!'



Jonah Hill: 'Yeah, a few times.'

'What about Willie Nelson?' Andy asked of the 80-year-old country singer who's almost as famous for his heavy smoking habit as he is his music.

'No,' Seth replied, adding with a glimmer of hope, 'but he's here in town I think...'

On the bandwagon: Comedienne Sarah Silverman was a solid yes, with Seth adding, 'many times'

'Yeah, a few times': Two-time Oscar-nominee Jonah Hill didn't get off unscathed either

'Yeah, actually I have!' The 31-year-old actually seemed quite impressed with himself at being able to count Snoop Dogg on his list of celebrity smoking buddies

While the actor may have quite the impressive list of pals he can call on to share a spliff, Andy revealed he has one over him as he remembered he had once shared a joint with Willie himself.



'By the way, it's crazy and I just realised it, I've smoked dope with Willie Nelson,' he said. 'It's amazing, it's crazy.'



Asked how the situation came about, the TV executive recalled that it was at a party at 'someone's house' in New York 'and he showed up and was like, "Hey, I have this huge cigar-sized joint."'



Seemingly impressed, Rogen replied: 'He's like 80 years old. I'd be afraid he'd start coughing and his whole insides would come out!'

'No, but he's here in town I think...' The actor sounded like he was eager to rectify not being able to say yes when it comes to the 80-year-old country music star, who is well known for his love of weed

'That's why he's such a good actor!' While it was largely assumed that James Franco wasn't opposed to smoking a little marijuana going off his history of stoner roles, his pal and brother both vouch for that not being the case Typecast: The 31-year-old has starred as a lovable stoner in movies such as 2008's Pineapple Express - pictured left with co-stars James Franco (centre) and Danny McBride

Playing the fool: The star played himself in last year's This Is The End - pictured here with Craig Robinson (left) and Jay Baruchel



