Quinn "CCnC" Callahan is an American professional Dota 2 player who currently plays for Chaos Esports Club.
Quinn started Dota 2 in December 2012 and later reached 8500 MMR in early 2017 through grinding ranked matches. He was first known playing for FDL for two periods and later played for is GG and Team Freedom for a short duration, later being invited as an analyst for the English talent of the The International 2017. 
Following the International, CCnC was invited by the returning ppd, who was previously in administrative duties with EG, to form a team called The Dire. Shortly after the team's establishment, it was later picked up by OpTic Gaming and on the 16th April, the team won their first tournament at Starladder i-League Invitaional 5. The achievement heralded CCnC's first win in the current circuit season, but also his maiden LAN win in his professional career. 
- CC&C stands for Cool, Calm and Collected.
- In January 2017, CC&C infamously told mason "If you make a lan [sic] (Note: with Team Onyx), I'll quit Dota". Despite mason qualifying for The Kiev Major 2017 as a member of Team Onyx, CC&C did not retire, eventually joining Team Freedom. The two would end up meeting each other in the grand finals of the The International 2017 North America Qualifier, with mason, now a member of Digital Chaos, advancing to The International 2017 following a 3-0 victory.
- Many player transfers during the beginning of the 2017-2018 season were leaked by a reddit user named lgdamefan. A common allegation was that the account belonged to CCnC. This allegation became so popular, it became a meme and the inspiration behind a BTS skit starring CCnC and Ame.
|2019-11-10||2nd||Major||DOTA Summit 11||0 : 3||$60,000|
|2019-08-22||9 - 12th||Premier||The International 2019||1 : 2||$686,602|
|2019-02-24||2nd||Major||MDL Macau 2019||1 : 3||$60,000|
|2018-08-23||7 - 8th||Premier||The International 2018||1 : 2||$638,304|
|2018-06-09||5 - 6th||Premier||China Dota2 Supermajor||0 : 2||$90,000|
|2018-05-27||2nd||Premier||ESL One Birmingham 2018||0 : 3||$200,000|
|2018-04-15||1st||Major||StarLadder ImbaTV Invitational Season 5||3 : 1||$135,000|
|2018-04-05||7 - 8th||Premier||Dota 2 Asia Championships 2018||0 : 1||$35,000|
|2018-03-11||5 - 8th||Premier||The Bucharest Major||0 : 2||$30,000|
|2017-12-10||2nd||Major||ROG MASTERS 2017||2 : 3||$58,800|
|Complete list of results in any tournament|
- 2018-12-06 | Position Six Podcast Episode 8 - Featuring CCNC by Dan Offen of Position Six Podcast
- 2018-08-20 | Interview with CCnC At TI8 Media Day by yamato77 of liquiddota.com at The International 2018
- 2018-05-26 | CCNC 'VP is a team that just beats you into the ground in lanes' by Lawrence "Malystryx.GDS" Phillips of joindota.com at ESL One Birmingham 2018
- 2017-11-06 | OpTic Gaming’s CCnC on the Origins of OpTic by ROG of ASUS ROG (Republic of Gamers) at ASUS ROG MASTERS 2017
- 2017-05-17 | CCnC sheds light on isGG’s recent surge in form by Ollie Ring of redbull.com
- Gamerhcp (2017-07-22). "The International 7 hosts announced". liquiddota.com.
- Patrick Bonifacio (2018-04-17). "OpTic Gaming wins first Pro Circuit event at SLi Invitational".
- "CCNC told Mason, If your team makes a LAN, I'll quit Dota". YouTube. 2017-01-27.
- "LGD Ame Fan". BeyondTheSummit. 2017-12-07.