v1 just sat down a couple hands ago and is in HJ. I have no reads on v1.

v2 is loose passive and is on the button. v2 often raising preflop, but rarely c-betting.

I have AT UTG and make it $20. i get 4 callers.

($100) 987 I continue bet $55. V1 raises to $110. v2 flat calls. I call $55 more

($430) Turn is T I check, v1 checks, v2 checks

($430) River is 2 Hero? V1 has $400 behind and V2 has $200 behind. I have them both covered.

With 5 players and first to act I'm checking the flop. I wanna try to get there cheaply if possible, and I would check the river as played with 4 to a str8 on the board.

ATo isn't a good open UTG at most tables. Flop should be a check with 4 opponents. This is a great board to be in trouble already and you need to see what happens. Probably going to see the turn but if it's too expensive you can just bail. Obviously calling the min raise with the open ended draw but only because you have the top draw since there is a good chance somebody has a straight already given the action and lack of flush draws.

As played check the river. It's pretty unlikely your top pair is best or that anybody has a jack but it's too likely somebody will make a crying call with a low straight, set or two pair. It's too hard to represent a straight after you check turn.

Fold pre. Check flop. Ap check river.

Depending on number of players ATo as an UTG open is borderline. Flop check call. River is a check call for me. Certainly not a bet, because:
Which worse hands will call with 4 to a straight on the board? Not many. A9...maybe? But that's pretty much it.
Which better hands will fold? Not many. No one is likely to hold QQ, KK or AA given preflop action. That leaves 2pair or better which will certainly call knowing that with an UTG raise you are unlikely to have a straight. They have pretty much everything beaten with which you would open except a set of tens.

Check down, bluff catcher. Only betting after will be your slow played straights, two pair, slow played sets. 4 to a straight on the board with 3 callers though seems that just a check call on the River would be +EV for any marginal bet.