IKS Amar personnel
A list of the Klingon personnel of the IKS Amar in the 2270s.
Captain []

The Amar captain
The captain was the commanding officer of the Amar, the lead vessel of a squadron of Klingon battle cruisers that attempted to intercept and was later destroyed by V'ger. (Star Trek: The Motion Picture)

Lenard's Klingon make-up is given a last-minute touch-up on the set of The Motion Picture
The Klingon captain was portrayed by Mark Lenard, who is better known as Sarek, Spock's father. He was initially offered the role via a phone call from Gene Roddenberry. "I never thought of playing a Klingon," Lenard admitted, "but I said, 'Sure, I would love to.'" The actor found his makeup extremely uncomfortable while playing the part. (Starlog #117, p. 48)
The Star Trek Customizable Card Game gives his name as Krase. This was obviously meant as an in-joke, as it is an anagram of the name of Lenard's better-known role of Sarek. The novel Forgotten History gives his full name as Barak, son of Krase.
Executive officer []

The Amar exec
The executive officer. (Star Trek: The Motion Picture)
This Klingon was played by stuntman Tom Morga in his very first Star Trek role.
Helmsman and navigator []
The helmsman and navigator. (Star Trek: The Motion Picture)
The Star Trek Customizable Card Game gives the helmsman's name as Karnog. However, he is identified as the ship's science officer. There, he is listed as the science officer of the Amar who tried to analyze the V'ger data. [2]
Officer []

An Amar officer
This officer approached the seated navigator and helmsman when the Amar was slowly coming closer to V'ger. (Star Trek: The Motion Picture)
Weapons operators []
These two officers were seated in chairs with viewscreens that controlled the Amar's weapons. (Star Trek: The Motion Picture)
These officers were portrayed by one of the unspecified actors listed above.