Michael Rennie, in movie The Lost World
Michael Rennie, in Lost In Space episode, The Keeper
...is that David Heddison from Voyage to the Bottom of the Sea?? “Seaview”?
Yes. He played the reporter.
“David Hedison as Ed Malone — A journalist at the Global News who volunteers to join the expedition.”
Featured cast - The Lost World (1960)
https://en.wikipedia.org/wiki/The_Lost_World_(1960_film)#Featured_cast
Ironically, there was an actor who played a leading role in BOTH things I referenced (the 60s TV series Lost In Space AND the 1960 movie The Lost World).
And that was Michael Rennie
The Lost World (1960): “Michael Rennie as Lord John Roxton — An experienced big-game hunter who joins the expedition.”
Lost In Space (2-part episode The Keeper)
Lost in Space (1965) – [Michael Rennie] as “The Keeper” - two episodes
Michael Rennie, in Lost In Space episode, The Keeper
Scene from Lost In Space