Group fixtures: v England (Edgbaston, 8 June); v New Zealand (Edgbaston, 12 June); v Sri Lanka (The Oval, 17 June)
Best Champions Trophy performance: Winners, 2006 & 2009
ODI ranking: 2
Squad: George Bailey, Michael Clarke (capt), Nathan Coulter-Nile, Xavier Doherty, James Faulkner, Phillip Hughes, Mitchell Johnson, Clint McKay, Mitchell Marsh, Glenn Maxwell, Mitchell Starc, Adam Voges, Matthew Wade (wk), David Warner, Shane Watson.
Captain: Batsman Michael Clarke inherited the Test and ODI captaincy from Ricky Ponting after the 2011 World Cup, having regularly deputised for him in the past. ODI captaincy stats: 56 games, W36, L28, NR2. (NR=no result)
One to watch: Hard-hitting batsman Glenn Maxwell arrived in England last summer to play for South Wilts CC in the Southern League, and in less than a year had played Twenty20 cricket for Hampshire and then Australia, landed a $1m Indian Premier League contract and made his Test debut. Knows English conditions well and his off-spin adds balance to the side.
Form guide: Strong during their home summer. Whitewashed West Indies 5-0 in February, after drawing 2-2 with Sri Lanka the previous month. Last 10 ODI results: W L L NR W W W W W W
Group fixtures: v Australia (Edgbaston, 8 June); v Sri Lanka (The Oval, 13 June); v New Zealand (Cardiff, 16 June)
Best Champions Trophy performance: Runners-up, 2004
ODI ranking: 4
Squad: James Anderson, Jonny Bairstow (wk), Ian Bell, Ravi Bopara, Tim Bresnan, Stuart Broad, Jos Buttler (wk), Alastair Cook (capt), Steven Finn, Eoin Morgan, Joe Root, Graeme Swann, James Tredwell, Jonathan Trott, Chris Woakes.
Captain: Opener Alastair Cook succeeded Andrew Strauss as ODI skipper in the summer of 2011, having only played in four ODIs in the preceding three years, but enjoyed a run of 10 successive wins in the spring and summer of 2012. ODI captaincy stats: 44 games, W26, L15, T1, NR 2. (T=tied)
One to watch: With Kevin Pietersen injured, Eoin Morgan will have a key role to play. England's orthodox top three of Cook, Bell and Trott means the innovative Morgan will anchor a middle order containing the relatively inexperienced Root, Buttler and possibly Bairstow. A big innings from Morgan is often vital to England's run chases.
Form guide: Mixed. Lost 3-2 in India in January, came from behind to beat New Zealand 2-1 down under in February, and beaten by the Kiwis on their own turf in the lead-up to the Champions Trophy. Last 10 ODI results (before NZ home series): L L L W L W W L L W
Group fixtures: v Sri Lanka (Cardiff, 9 June); v Australia (Edgbaston, 12 June); v England (Cardiff, 16 June)
Best Champions Trophy performance: Winners, 2000 (as ICC Knock Out)
ODI ranking: 7
Squad: Corey Anderson, Doug Bracewell, Ian Butler, James Franklin, Martin Guptill, Mitchell McClenaghan, Brendon McCullum (capt & wk), Nathan McCullum, Kyle Mills, Colin Munro, Luke Ronchi (wk), Tim Southee, Ross Taylor, Daniel Vettori, Kane Williamson.
Captain: Powerful wicketkeeper-batsman Brendon McCullum - full-time skipper since December 2012 when Ross Taylor was controversially removed from the role-has won high praise for his enterprising captaincy of the Test side. ODI captaincy stats: 17 games, W8, L9.
One to watch: Much is expected of Luke Ronchi, a wicketkeeper-batsman who was born in New Zealand before emigrating to Perth, where his form for Western Australia saw him play four ODIs and three Twenty20s for Australia between 2008 and 2009. Having returned to re-qualify for New Zealand, he is expected to open the batting with Martin Guptill.
Form guide: Claimed a shock 2-1 series win over South Africa in January, after losing 3-0 in Sri Lanka in November. Warmed up for the Champions Trophy by beating England 2-1, having lost by the same scoreline in the reverse home series in February. Last 10 ODI results (before England away series): NR W W L W L L W W L
Group fixtures: v New Zealand (Cardiff, 9 June); v England (The Oval, 13 June); v Australia (The Oval, 17 June)
Best Champions Trophy performance: Joint winners, 2002
ODI ranking: 5
Squad: Dinesh Chandimal (wk), Tillakaratne Dilshan, Shaminda Eranga, Rangana Herath, Mahela Jayawardene, Nuwan Kulasekara, Dilhara Lokuhettige, Lasith Malinga, Angelo Mathews (capt), Jeevan Mendis, Kushal Perera, Thisara Perera, Kumar Sangakkara (wk), Sachithra Senanayake, Lahiru Thirimanne.
Captain: All-rounder Angelo Mathews has the least ODI captaincy experience of the eight men leading their teams into this tournament, with only four games and one victory (at home to Bangladesh) to his name. ODI captaincy stats: 4 games, W1, L2, NR1
One to watch: With old warhorses Jayawardene, Sangakkara and Dilshan all the wrong side of 35, young wicketkeeper-batsman Dinesh Chandimal is the rising star of the Sri Lanka batting line-up, and ruled himself out of the IPL in order to prepare for the Champions Trophy. Only 23, he was recently handed the captaincy of the Twenty20 side, and was also named as Mathews's vice-captain in the other formats.
Form guide: Drew both their most recent series - 1-1 at home to Bangladesh in March and 2-2 in Australia in January - after cruising past New Zealand 3-0 at home in November. Last 10 ODI results: W NR L W W NR L W NR L
Group fixtures: v South Africa (Cardiff, 6 June); v West Indies (The Oval, 11 June); v Pakistan (Edgbaston, 15 June)
Best Champions Trophy performance: Joint winners, 2002
ODI ranking: 1
Squad: Ravichandran Ashwin, Shikhar Dhawan, Mahendra Dhoni (capt & wk), Ravindra Jadeja, Dinesh Karthik (wk), Virat Kohli, Bhuvneshwar Kumar, Vinay Kumar, Amit Mishra, Irfan Pathan, Suresh Raina, Ishant Sharma, Rohit Sharma, Murali Vijay, Umesh Yadav.
Captain: Wicketkeeper-batsman Mahendra Dhoni is the longest-serving ODI captain at this tournament, having led India's limited-overs sides since 2007 and lifted the World Cup on home soil four years later. ODI captaincy stats: 135 games, W77, L47, T3, NR8
One to watch: India caused a stir by omitting the experienced Gautam Gambhir and Yuvraj Singh from their squad, and, with Virender Sehwag in the international wilderness - possibly for good - a lot rests on opener Shikhar Dhawan, who has been handed a shock recall to the national side. He scored an astonishing 187 on Test debut in March, but can he fire in England - two years after his last ODI appearance?
Form guide: Beat England 3-2 in January after losing 2-1 to fierce rivals Pakistan at the turn of the year. Last 10 ODI results: W W L L W L W W W L
Group fixtures: v West Indies (The Oval, 7 June); v South Africa (Edgbaston, 10 June); v India (Edgbaston, 15 June)
Best Champions Trophy performance: Semi-finals, 2000, 2004 & 2009
ODI ranking: 6
Squad: Abdur Rehman, Asad Ali, Asad Shafiq, Ehsan Adil, Imran Farhat, Junaid Khan, Kamran Akmal (wk), Misbah-ul-Haq (capt), Mohammad Hafeez, Mohammad Irfan, Nasir Jamshed, Saeed Ajmal, Shoaib Malik, Umar Amin, Wahab Riaz.
Captain: The Pakistan captaincy changes hands more regularly than it does in most teams, but batsman Misbah-ul-Haq, now 39, won 14 of his first 15 ODIs as skipper before a 4-0 loss to England in the United Arab Emirates in February 2012. ODI captaincy stats: 42 games, W25, L15, T1, NR1
One to watch: Elegant left-handed opener Nasir Jamshed has caught the eye since his international recall last year. However, it will be interesting to see how he copes in unfamiliar conditions as he has never played in England. While he averages over 50 from the 22 ODIs he has played in Asia, a more modest total of 85 runs in six ODIs elsewhere in the world suggests he may not find it so easy.
Form guide: Pakistan, who won the World Twenty20 on English soil in 2009, arrived in the British Isles earlier than most teams, thrashed Scotland before the second game was washed out and enjoyed a thrilling tie and a narrow victory against Ireland. Lost 3-2 in South Africa in March after beating India 2-1 over the new year. Last 10 ODI results: L L W L W L W A T W (A=abandoned)
Group fixtures: v India (Cardiff, 6 June); v Pakistan (Edgbaston, 10 June); v West Indies (Cardiff, 14 June)
Best Champions Trophy performance: Winners, 1998 (as ICC Knock Out)
ODI ranking: 3
Squad: Hashim Amla, Farhaan Behardien, AB de Villiers (capt & wk), JP Duminy, Faf du Plessis, Colin Ingram, Rory Kleinveldt, Ryan McLaren, David Miller, Chris Morris*, Alviro Petersen, Robin Peterson, Aaron Phangiso, Dale Steyn, Lonwabo Tsotsobe.
* Chris Morris replaced the injured Morne Morkel on 7 June. Morkel played in South Africa's opening match against India the previous day.
Captain: Wicketkeeper-batsman AB de Villiers, who averages over 50 in ODI cricket, replaced Graeme Smith as one-day captain in early 2012. ODI captaincy stats: 19 games, W11, L7, NR1
One to watch: Although Dale Steyn and Morne Morkel remain South Africa's most-heralded opening attack, left-arm seamer Lonwabo Tsotsobe was the top-ranked bowler in the International Cricket Council rankings as recently as last year. While he lacks the express pace of Steyn and Morkel, "Lopsy" remains an integral member of the one-day side, with 73 wickets at 23.05 from 43 ODIs. He may have a point to prove on these shores after his spell with Essex in 2011 ended with a public spat with their coach, while he failed to shine on South Africa's tour of England in 2012.
Form guide: Despite being the number one Test team, the Proteas have struggled to dominate in the same way in 50-over cricket. Beat Pakistan 3-2 at home in March after a shock 2-1 home defeat by New Zealand in January. Last 10 ODI results: W L L W W L W L W W
Group fixtures: v Pakistan (The Oval, 7 June); v India (The Oval, 11 June); v South Africa (Cardiff, 14 June)
Best Champions Trophy performance: Winners, 2004
ODI ranking: 8
Squad: Tino Best, Darren Bravo, Dwayne Bravo (capt), Johnson Charles, Chris Gayle, Jason Holder, Sunil Narine, Kieron Pollard, Denesh Ramdin (wk), Ravi Rampaul, Kemar Roach, Darren Sammy, Marlon Samuels, Ramnaresh Sarwan, Devon Smith.
Captain: All-rounder Dwayne Bravo was recently elevated to the captaincy after a spell as vice-captain under Darren Sammy, who remains in the ODI squad and still leads the side in Tests and Twenty20. ODI captaincy stats: 10 games, W5 (all against Zimbabwe), L5 (all against South Africa)
One to watch: The ebullient Tino Best lit up Edgbaston last year by smashing a swashbuckling 95 against England, narrowly failing to become the first number 11 to score a Test century. The Bajan pace bowler is enjoying a second wind to his international career, which began more then a decade ago and looked to be over not long after Andrew Flintoff famously urged him to "mind the windows". Best and Kemar Roach will form the spearhead of a bowling attack that must fire if West Indies are to back up their explosive batting line-up.
Form guide: Not good, Easily disposed of Zimbabwe 3-0 in late February, but only after a 5-0 hammering in Australia earlier in the month, and a 3-2 series defeat by Bangladesh in late 2012. Last 10 ODI results: W L L L L L L W W W