From the notes of Princess Luna, Supreme Commander of the Equestria Defence Force, on the founding members of Special Operations Unit 'Task Force Harmony'. For ease of finding relevant information, ponies not selected for the unit will not be included here.

Unit Leader:

Name: Cipher
Race/Gender: Earth Stallion
Age: 48
Birthplace/Residence: Canterlot

Former unit: EDF High Command
Rank: Colonel
Combat style: Direct Offense
Notes: Family well known in Canterlot, wife works closely with nobility and daughter was educated at Celestia's School of Magic. Six years with Royal Guard Intelligence unit before formation of EDF. 1st Earth Pony Regiment, 4th Unit for ten years before being promoted out of frontline duty.

Extremely dedicated to duty, quick witted and shows the same loyalty to his men that they show to him. Given the close-knit nature expected of TFH, his closeness to ponies he serves with makes him highly recommended. Talent is wasted within the command center, suggest allowing for return to frontline duty in some capacity if offer is refused.

Team Members:

Listed in order of acceptance to unit. Combined notes from S.C. Luna and Col. Cipher.

Name: Healing Wave
Race/Gender: Unicorn Mare
Age: 32
Birthplace/Residence: Vanhoover/Canterlot

Former unit: 2nd Emergency Unit 'First Responders'
Rank: First Sergeant
Combat Style: Defensive Support
Notes: Trained as a nurse in Vanhoover before joining EDF on its foundation. 1st Unicorn Company, 6th Unit, demonstrated apt medical skill but struggled to integrate with teammates. Five years in unit before transfer to Medical Corps, 2nd Emergency Unit upon its creation, talents improved there but remained among Rapid Response teams, likely to avoid getting too attached to anypony she worked with.

Possible that medical work left Healing Wave distant from ponies due to stress and consequences of failure. However, her superiors have noted that her performance under pressure is virtually unaffected. That kind of skill will be necessary for the work TFH will be performing. Unit bonds may allow her to open up as well.

Name: Rainbow Dash
Race/Gender: Pegasus Mare
Age: 39
Birthplace/Residence: Cloudsdale/Ponyville

Former unit: Squadron One 'Wonderbolts'
Rank: Second Lieutenant (Update: Promoted to Captain upon acceptance of position)
Combat Style: Offensive Support
Notes: Element of Loyalty. Previous exploits well catalogued. Served with Wonderbolts for four years prior to EDF foundation and remained on team after it was integrated into the Sky Wing as Squadron One. Eighteen years in EDF has honed skills much further and could have been a commander if not for her desire to stand with her teammates.

Rainbow Dash's name speaks for itself. By far the best fighter among the Elements of Harmony and the least likely to break under pressure, highly recommended to help bring team together. May require extra persuasion to leave the Wonderbolts full time.

Name: Aurora
Race/Gender: Unicorn Stallion
Age: 20
Birthplace/Residence: Crystal City

Former unit: N/A
Rank: N/A (Update: Listed as Private by Cipher)
Combat Style: Unknown (Update: Defensive Support)
Notes: Son of Queen Cadance and King Shining Armor of the Crystal Empire. Highly inexperienced in direct combat compared to any other pony being considered. However, known magical talent, tactical knowledge and training received from his parents would prove highly valuable in the field. Will talk with Cadance to discuss possibility of his joining.

Name: Flash Sentry
Race/Gender: Pegasus Stallion
Age: 43
Birthplace/Residence: Baltimare/Crystal City

Former unit: Crystal Guards
Rank: Second Lieutenant
Combat Style: Offensive Support
Notes: Originally part of Baltimare Guard, briefly served in Canterlot to help increase security numbers and was present during the changeling attack in 1000CE. Transferred to Crystal Guards shortly after the liberation of the Crystal Empire in order to help train crystal ponies in modern tactics and methods. Remained with unit after the guard was welcomed into the EDF in 8 FP and remains one of their most decorated members even today.

Flash Sentry is a model soldier and highly durable by normal pegasus standards. Injuries sustained on duty in the frozen north seemingly have no effect on him years after the event. Likely the most disciplined member of TFH should he accept, though not without a rough edge that should make it slightly easier for others to warm up to him.

Name: Bulwark
Race/Gender: Earth Stallion
Age: 36
Birthplace/Residence: Trottingham

Former unit: 19th Protector unit 'Forest Wardens'
Rank: Chief Warrant Officer
Combat Style: Defensive Offence
Notes: Cargo hauler in hometown port before joining EDF with his marefriend, now wife. Posted to Combined forces Regiment initially. Transferred to 2nd Earth Pony Platoon, 19th Protector unit after displaying exceptionally strong sense of care for other ponies he worked with.

In one-on-one combat, Bulwark can't be beat. His imposing size and defensive style results in battles of attrition that anything the size of or smaller than him don't stand much chance in. He also has a gentle soul and good nature that allows other ponies to warm to him. Sounds ideal for TFH.

Name: Water Flare
Race/Gender: Earth Mare
Age: 31
Birthplace/Residence: Los Pegasus/Whinnyapolis

Unit: 11th Support unit 'Dawn Bringers'
Rank: Master Sergeant
Combat Style: Direct Offense
Notes: Father unknown, moved with her mother to Whinnyapolis at age 9. Served as a medical worker before an incident responding to a skyscraper fire in 4 FP caused her to leave her career path and later join the EDF's Combined Forces Regiment. Also displays signs of instability as a result of this past incident. ~~Unlikely to cope with pressure the unit may come under, candidate rejected.~~

Update: Reconsidering Water Flare after Rainbow Dash accepted a place in TFH. On her own, Water Flare is doggedly devoted to a task and displays above average agility, but is somewhat undisciplined and tends to panic when losing control of a situation. Her skills are more than enough for consideration for the team though, and she displays a hero worship of Rainbow Dash due to their history. Rainbow Dash may act as a stabilizing element she needs to reach her true potential.

Author's Note

For the curious, I do have VA's in mind when I think of the OC team members:

Cipher - Steve Blum
Healing Wave - Karen Strassman
Aurora - Johnny Yong Bosch
Bulwark - David Harewood
Water Flare - Jessi Nowack