This is Mego's Peter Burke from 1974. He's the other astronaut that was stranded with Alan Virdon on the TV version of Planet of the Apes.
As with Virdon, Mego did an outstanding job of capturing the actor's (James Naughton) likeness... especially by 1974 toy standards.
To be complete, Peter should have a brown long-sleeved shirt, tan pants, a burlap (yep, it's even rough and itchy) vest, and brown moccasins (same as Virdon and Cornelius/Galen).
This concludes the Mego Planet of the Apes action figure line. Mego produced 9 individual figures from the films and TV show (ten characters... as Mego used the same figure for both Cornelius and Galen). Although, we really didn't care what movies or shows the figures came from as long as we had a good assortment of Apes and Astronauts to play with... and Mego delivered. I think Mego did an outstanding job on the Planet of the Apes figure line. For Megos, they are well-detailed and come with a nice assortment of accessories (at least the Generals did). For me, this will always be the quintessential Planet of the Apes figure line and I'm glad I was the right age when they arrived to enjoy them like I and many others did.