If you couldn't tell that The Wrong Mans was a Big Deal from the explosive trailers and high production values, then the quality of the supporting cast should confirm it: Dougray Scott, Sarah Solemani, Benedict Wong, Emilia Fox, Nick Moran, Dawn French, Tom Basden...

Even more impressively, each turn (Fox and French excepted, although we suspect there'll be more to come there) makes an impression, while creator-stars Mat Baynton and James Corden nail the odd couple dynamic that keeps this occasionally leaky vessel afloat. We join Sam (Baynton) and Phil (Corden) drifting further out of their depth at the hands of psychotic gangsters Moran and Wong, before a show-stopping presentation from Sam saves his professional hide while bringing the danger even closer to home.

It's in these collisions of the workaday and the white knuckle that The Wrong Mans works best, as the more traditional thriller elements stubbornly fail to coalesce with any conviction. But it's never dull and frequently very funny.

I'm holding out hope for BBC One's The Wrong Mans. Mathew Baynton from CBBC's Horrible Histories plays Sam Pinkett, an employee of Berkshire County Council who gets mixed up in a thriller plot-line entirely at odds with his mundane existence to date. Gavin & Stacey's James Corden (who also co-wrote the script with Baynton) plays his colleague Phil Bourne, a man who makes up in enthusiasm what he lacks in common sense.

Wisely judging that the Hitchcock reference will go over our heads, this first episode of six spent much of its time in setting tone. Thanks to slick direction and, one suspects, a large chunk of the BBC's autumn budget, it certainly looks as good as a Hollywood thriller.

It's only a shame that the combination of ordinary blokes and extraordinary setting won't feel original to anyone who's seen Shaun of the Dead or any other Simon Pegg/Nick Frost collaboration. Unlike Pegg/Frost, Baynton/Corden isn't yet a natural double act with natural chemistry. Instead, they came across like the straight man(s) in search of a comedian.

Still, if Baynton and Corden don't do it for you, we're promised forthcoming episodes will include a supporting cast of contemporary comedy talent to compensate. There's Him & Her's Sarah Solemani, The Thick of It's Paul Higgins and Dawn French, among others. As the trail for next week's episode revealed, Lock Stock's Nick Moran will also be stomping around doing his well-worn cockney gangster bit. But don't let that put you off.

Love him or hate him, James Corden undeniably does have a range of talents - actor, writer and co-creator of some very funny comedy (we'll politely forget the car crash of his misguided BBC sketch show with Mathew Horne). And now, dontchaknow, he's come up with another comedy vehicle, The Wrong Mans (****), which had a very accomplished debut last night.

Corden, late of the National Theatre and Broadway, has co-written, with fellow Gavin & Stacey alumnus Mathew Baynton, a comedy thriller in the style of Simon Pegg and Joe Wright's Cornetto trilogy, with appreciative nods (in the title) to Alfred Hitchcock's 1956 thriller and, in camerawork and misfit leads, to Peep Show.

Baynton is nice but weedy Sam, who wakes up one wintry morning with the mother of a hangover, only to find his pushbike has been stolen so he has to walk to work, as a town planning and noise guidance adviser for Berkshire County Council. On his way, he's the only witness to a car crash and he picks up a ringing phone; a man issues threats and in later calls it's clear a woman has been kidnapped.

At work Sam takes postboy Phil (Corden) into his confidence. Phil is beside himself; he's a 31-year-old living at home with his mum and he keeps trying to organise fun days paint-balling or bowling with his colleagues (oblivious to the fact they all think he's a boring knob); for him, this mystery is his very own live-action Grand Theft Auto, and he convinces Sam not to call the police but to try to rescue the woman and become heroes.

The opening episode efficiently essayed the set-up, and there are some promising relationships to be explored in the following five weeks. Sarah Solemani (who was so brilliant in Him & Her) is Sam's boss, but also the girlfriend who recently dumped him because he was too needy, while Tom Basden is the horrible colleague we'd love to be taken down a peg or two.

Corden clearly has pulling power, as those names above suggest, and Dawn French, Nick Moran, Rebecca Front and Dougray Scott will appear in future episodes - although David Harewood, who appeared briefly last night, shot his scenes before his Homeland stardom. The opener had some neat twists and turns and ended on a great cliffhanger. Definitely one to stay with.

Everything is right about this slick new sitcom

There are some hefty names attached to this project, but it's not because the material needs filling out with someone's ego. It's more likely because the likes of Dougray Scott, Nick Moran and Dawn French know top-quality work when they see it.

This new comedy drama written by and starring James Corden and Horrible Histories' Mathew Baynton is quite good. What's remarkable is the wealth of on-screen talent involved, and I don't just mean Dawn French, Rebecca Front, Nick Moran, Homeland's David Harewood and Him & Her's Sarah Solemani. When you can employ Paul Higgins (The Thick of It) and Twenty Twelve's Vincent Franklin in the seemingly throwaway roles of traffic cops, then that is casting in depth. Taking its title from Hitchcock's 1956 thriller of mistaken identity, The Wrong Man, it stars Baynton as a Berkshire County Council office drudge accidentally mixed up in a criminal conspiracy. Corden is on his best form as his excitable colleague.

Spoofing action-filled, big budget American TV series, The Wrong Mans is both sitcom and thriller. Created by and starring James Corden and Matthew Bayton, as a luckless duo working for Berkshire County Council whose blue-collar lives are turned upside down by a chance phone call. Mistaken identities prompt comic mishap as they are drawn into a murky world of international espionage. The supporting cast includes Dawn French, Sarah Solemani, Rebecca Front, Dougray Scott, Emilia Fox, Nick Moran, Stephen Campbell Moore and Tom Basden - the very Best of British.